iotests: Fix _send_qemu_cmd with bash 5.1

With bash 5.1, the output of the following script changes:

  a=("double  space")
  a=${a[@]:0:1}
  echo "$a"

from "double space" to "double  space", i.e. all white space is
preserved as-is.  This is probably what we actually want here (judging
from the "...to accommodate pathnames with spaces" comment), but before
5.1, we would have to quote the ${} slice to get the same behavior.

In any case, without quoting, the reference output of many iotests is
different between bash 5.1 and pre-5.1, which is not very good.  The
output of 5.1 is what we want, so whatever we do to get pre-5.1 to the
same result, it means we have to fix the reference output of basically
all tests that invoke _send_qemu_cmd (except the ones that only use
single spaces in the commands they invoke).

Instead of quoting the ${} slice (cmd="${$@: 1:...}"), we can also just
not use array slicing and replace the whole thing with a simple "cmd=$1;
shift", which works because all callers quote the whole $cmd argument
anyway.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201217153803.101231-3-mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>

24 files changed, 728 insertions, 199 deletions

diff --git a/tests/qemu-iotests/085.out b/tests/qemu-iotests/085.out
index 7fc44b1c61..32a193f2c2 100644
--- a/tests/qemu-iotests/085.out
+++ b/tests/qemu-iotests/085.out
@@ -12,56 +12,135 @@ Formatting 'TEST_DIR/t.IMGFMT.2', fmt=IMGFMT size=134217728
 
 === Create a single snapshot on virtio0 ===
 
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'virtio0', 'snapshot-file':'TEST_DIR/1-snapshot-v0.IMGFMT', 'format': 'IMGFMT' } }
+{ 'execute': 'blockdev-snapshot-sync',
+                      'arguments': { 'device': 'virtio0',
+                                     'snapshot-file':'TEST_DIR/1-snapshot-v0.IMGFMT',
+                                     'format': 'IMGFMT' } }
 Formatting 'TEST_DIR/1-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/t.qcow2.1 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
 
 === Invalid command - missing device and nodename ===
 
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'snapshot-file':'TEST_DIR/1-snapshot-v0.IMGFMT', 'format': 'IMGFMT' } }
+{ 'execute': 'blockdev-snapshot-sync',
+                         'arguments': { 'snapshot-file':'TEST_DIR/1-snapshot-v0.IMGFMT',
+                                     'format': 'IMGFMT' } }
 {"error": {"class": "GenericError", "desc": "Cannot find device= nor node_name="}}
 
 === Invalid command - missing snapshot-file ===
 
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'virtio0', 'format': 'IMGFMT' } }
+{ 'execute': 'blockdev-snapshot-sync',
+                         'arguments': { 'device': 'virtio0',
+                                     'format': 'IMGFMT' } }
 {"error": {"class": "GenericError", "desc": "Parameter 'snapshot-file' is missing"}}
 
 
 === Create several transactional group snapshots ===
 
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/2-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/2-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/2-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/2-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/2-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/1-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/2-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/t.qcow2.2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/3-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/3-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/3-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/3-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/3-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/2-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/3-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/2-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/4-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/4-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/4-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/4-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/4-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/3-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/4-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/3-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/5-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/5-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/5-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/5-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/5-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/4-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/5-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/4-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/6-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/6-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/6-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/6-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/6-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/5-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/6-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/5-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/7-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/7-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/7-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/7-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/7-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/6-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/7-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/6-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/8-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/8-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/8-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/8-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/8-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/7-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/8-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/7-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/9-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/9-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/9-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/9-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/9-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/8-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/9-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/8-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': 'TEST_DIR/10-snapshot-v0.IMGFMT' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': 'TEST_DIR/10-snapshot-v1.IMGFMT' } } ] } }
+{ 'execute': 'transaction', 'arguments':
+           {'actions': [
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio0',
+                      'snapshot-file': 'TEST_DIR/10-snapshot-v0.IMGFMT' } },
+               { 'type': 'blockdev-snapshot-sync', 'data' :
+                   { 'device': 'virtio1',
+                       'snapshot-file': 'TEST_DIR/10-snapshot-v1.IMGFMT' } } ]
+             } }
 Formatting 'TEST_DIR/10-snapshot-v0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/9-snapshot-v0.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 Formatting 'TEST_DIR/10-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=134217728 backing_file=TEST_DIR/9-snapshot-v1.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
@@ -69,48 +148,84 @@ Formatting 'TEST_DIR/10-snapshot-v1.qcow2', fmt=qcow2 cluster_size=65536 extende
 === Create a couple of snapshots using blockdev-snapshot ===
 
 Formatting 'TEST_DIR/11-snapshot-v0.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/10-snapshot-v0.IMGFMT backing_fmt=IMGFMT
-{ 'execute': 'blockdev-add', 'arguments': { 'driver': 'IMGFMT', 'node-name': 'snap_11', 'backing': null, 'file': { 'driver': 'file', 'filename': 'TEST_DIR/11-snapshot-v0.IMGFMT', 'node-name': 'file_11' } } }
+{ 'execute': 'blockdev-add', 'arguments':
+           { 'driver': 'IMGFMT', 'node-name': 'snap_11', 'backing': null,
+             'file':
+             { 'driver': 'file', 'filename': 'TEST_DIR/11-snapshot-v0.IMGFMT',
+               'node-name': 'file_11' } } }
 {"return": {}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_11' } }
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_11' } }
 {"return": {}}
 Formatting 'TEST_DIR/12-snapshot-v0.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/11-snapshot-v0.IMGFMT backing_fmt=IMGFMT
-{ 'execute': 'blockdev-add', 'arguments': { 'driver': 'IMGFMT', 'node-name': 'snap_12', 'backing': null, 'file': { 'driver': 'file', 'filename': 'TEST_DIR/12-snapshot-v0.IMGFMT', 'node-name': 'file_12' } } }
+{ 'execute': 'blockdev-add', 'arguments':
+           { 'driver': 'IMGFMT', 'node-name': 'snap_12', 'backing': null,
+             'file':
+             { 'driver': 'file', 'filename': 'TEST_DIR/12-snapshot-v0.IMGFMT',
+               'node-name': 'file_12' } } }
 {"return": {}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_12' } }
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_12' } }
 {"return": {}}
 
 === Invalid command - cannot create a snapshot using a file BDS ===
 
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node':'virtio0', 'overlay':'file_12' } }
+{ 'execute': 'blockdev-snapshot',
+                     'arguments': { 'node':'virtio0',
+                                    'overlay':'file_12' }
+                   }
 {"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
 
 === Invalid command - snapshot node used as active layer ===
 
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_12' } }
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_12' } }
 {"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node':'virtio0', 'overlay':'virtio0' } }
+{ 'execute': 'blockdev-snapshot',
+                     'arguments': { 'node':'virtio0',
+                                    'overlay':'virtio0' }
+                   }
 {"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node':'virtio0', 'overlay':'virtio1' } }
+{ 'execute': 'blockdev-snapshot',
+                     'arguments': { 'node':'virtio0',
+                                    'overlay':'virtio1' }
+                   }
 {"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
 
 === Invalid command - snapshot node used as backing hd ===
 
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_11' } }
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_11' } }
 {"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
 
 === Invalid command - snapshot node has a backing image ===
 
 Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
-{ 'execute': 'blockdev-add', 'arguments': { 'driver': 'IMGFMT', 'node-name': 'snap_13', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT', 'node-name': 'file_13' } } }
-{"return": {}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_13' } }
+{ 'execute': 'blockdev-add', 'arguments':
+           { 'driver': 'IMGFMT', 'node-name': 'snap_13',
+             'file':
+             { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT',
+               'node-name': 'file_13' } } }
+{"return": {}}
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_13' } }
 {"error": {"class": "GenericError", "desc": "The overlay already has a backing image"}}
 
 === Invalid command - The node does not exist ===
 
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_14' } }
+{ 'execute': 'blockdev-snapshot',
+                      'arguments': { 'node': 'virtio0',
+                                     'overlay':'snap_14' } }
 {"error": {"class": "GenericError", "desc": "Cannot find device=snap_14 nor node_name=snap_14"}}
-{ 'execute': 'blockdev-snapshot', 'arguments': { 'node':'nodevice', 'overlay':'snap_13' } }
+{ 'execute': 'blockdev-snapshot',
+                     'arguments': { 'node':'nodevice',
+                                    'overlay':'snap_13' }
+                   }
 {"error": {"class": "GenericError", "desc": "Cannot find device=nodevice nor node_name=nodevice"}}
 *** done
diff --git a/tests/qemu-iotests/094.out b/tests/qemu-iotests/094.out
index 9b6c57b3e2..97f894cf8f 100644
--- a/tests/qemu-iotests/094.out
+++ b/tests/qemu-iotests/094.out
@@ -3,13 +3,19 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/source.IMGFMT', fmt=IMGFMT size=67108864
 {'execute': 'qmp_capabilities'}
 {"return": {}}
-{'execute': 'drive-mirror', 'arguments': {'device': 'src', 'target': 'nbd+unix:///?socket=SOCK_DIR/nbd', 'format': 'nbd', 'sync':'full', 'mode':'existing'}}
+{'execute': 'drive-mirror',
+      'arguments': {'device': 'src',
+                    'target': 'nbd+unix:///?socket=SOCK_DIR/nbd',
+                    'format': 'nbd',
+                    'sync':'full',
+                    'mode':'existing'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 67108864, "offset": 67108864, "speed": 0, "type": "mirror"}}
-{'execute': 'block-job-complete', 'arguments': {'device': 'src'}}
+{'execute': 'block-job-complete',
+      'arguments': {'device': 'src'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "src"}}
diff --git a/tests/qemu-iotests/095.out b/tests/qemu-iotests/095.out
index e66ced58f8..8257c5e1e6 100644
--- a/tests/qemu-iotests/095.out
+++ b/tests/qemu-iotests/095.out
@@ -12,7 +12,9 @@ virtual size: 5 MiB (5242880 bytes)
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'block-commit', 'arguments': { 'device': 'test', 'top': 'TEST_DIR/t.IMGFMT.snp1' } }
+{ 'execute': 'block-commit',
+                                 'arguments': { 'device': 'test',
+                                 'top': 'TEST_DIR/t.IMGFMT.snp1' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "test"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "test"}}
 {"return": {}}
diff --git a/tests/qemu-iotests/109.out b/tests/qemu-iotests/109.out
index ad739df46c..6e73406cdb 100644
--- a/tests/qemu-iotests/109.out
+++ b/tests/qemu-iotests/109.out
@@ -6,7 +6,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -27,7 +29,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -51,7 +55,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -72,7 +78,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -96,7 +104,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -117,7 +127,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -141,7 +153,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -162,7 +176,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -186,7 +202,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -207,7 +225,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -231,7 +251,9 @@ Formatting 'TEST_DIR/t.raw.src', fmt=IMGFMT size=67108864
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -252,7 +274,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -275,7 +299,9 @@ Images are identical.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -296,7 +322,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -319,7 +347,9 @@ Images are identical.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -340,7 +370,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -363,7 +395,9 @@ Images are identical.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -384,7 +418,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -407,7 +443,9 @@ Images are identical.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -428,7 +466,9 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
@@ -451,7 +491,9 @@ Images are identical.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=SIZE
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
          Specify the 'raw' format explicitly to remove the restrictions.
@@ -473,7 +515,9 @@ WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed
 Images are identical.
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute':'drive-mirror', 'arguments':{ 'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'existing', 'sync': 'full'}}
+{'execute':'drive-mirror', 'arguments':{
+            'device': 'src', 'target': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT',
+            'mode': 'existing', 'sync': 'full'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "src"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "src"}}
 {"return": {}}
diff --git a/tests/qemu-iotests/117.out b/tests/qemu-iotests/117.out
index bb623dcc0a..735ffd25c6 100644
--- a/tests/qemu-iotests/117.out
+++ b/tests/qemu-iotests/117.out
@@ -2,11 +2,18 @@ QA output created by 117
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=65536
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'blockdev-add', 'arguments': { 'node-name': 'protocol', 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' } }
+{ 'execute': 'blockdev-add',
+       'arguments': { 'node-name': 'protocol',
+                      'driver': 'file',
+                      'filename': 'TEST_DIR/t.IMGFMT' } }
 {"return": {}}
-{ 'execute': 'blockdev-add', 'arguments': { 'node-name': 'format', 'driver': 'IMGFMT', 'file': 'protocol' } }
+{ 'execute': 'blockdev-add',
+       'arguments': { 'node-name': 'format',
+                      'driver': 'IMGFMT',
+                      'file': 'protocol' } }
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io format "write -P 42 0 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line': 'qemu-io format "write -P 42 0 64k"' } }
 wrote 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
diff --git a/tests/qemu-iotests/127.out b/tests/qemu-iotests/127.out
index efd6cb327f..1685c4850a 100644
--- a/tests/qemu-iotests/127.out
+++ b/tests/qemu-iotests/127.out
@@ -6,13 +6,21 @@ wrote 42/42 bytes at offset 0
 42 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'drive-mirror', 'arguments': { 'job-id': 'mirror', 'device': 'source', 'target': 'TEST_DIR/t.IMGFMT.overlay1', 'mode': 'existing', 'sync': 'top' } }
+{ 'execute': 'drive-mirror',
+       'arguments': {
+           'job-id': 'mirror',
+           'device': 'source',
+           'target': 'TEST_DIR/t.IMGFMT.overlay1',
+           'mode':   'existing',
+           'sync':   'top'
+       } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "mirror"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "mirror"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "mirror"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "mirror", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
-{ 'execute': 'block-job-complete', 'arguments': { 'device': 'mirror' } }
+{ 'execute': 'block-job-complete',
+       'arguments': { 'device': 'mirror' } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "mirror"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "mirror"}}
diff --git a/tests/qemu-iotests/140.out b/tests/qemu-iotests/140.out
index 62d9c3ab3c..312f76d5da 100644
--- a/tests/qemu-iotests/140.out
+++ b/tests/qemu-iotests/140.out
@@ -4,13 +4,17 @@ wrote 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'nbd-server-start', 'arguments': { 'addr': { 'type': 'unix', 'data': { 'path': 'SOCK_DIR/nbd' }}}}
+{ 'execute': 'nbd-server-start',
+       'arguments': { 'addr': { 'type': 'unix',
+                                'data': { 'path': 'SOCK_DIR/nbd' }}}}
 {"return": {}}
-{ 'execute': 'nbd-server-add', 'arguments': { 'device': 'drv' }}
+{ 'execute': 'nbd-server-add',
+       'arguments': { 'device': 'drv' }}
 {"return": {}}
 read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-{ 'execute': 'eject', 'arguments': { 'device': 'drv' }}
+{ 'execute': 'eject',
+       'arguments': { 'device': 'drv' }}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "drv"}}
 qemu-io: can't open device nbd+unix:///drv?socket=SOCK_DIR/nbd: Requested export not available
 server reported: export 'drv' not present
diff --git a/tests/qemu-iotests/141.out b/tests/qemu-iotests/141.out
index 08e0aecd65..6d8652e22b 100644
--- a/tests/qemu-iotests/141.out
+++ b/tests/qemu-iotests/141.out
@@ -7,105 +7,173 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/m.
 
 === Testing drive-backup ===
 
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'drv0', 'driver': 'IMGFMT', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' }}}
-{"return": {}}
-{'execute': 'drive-backup', 'arguments': {'job-id': 'job0', 'device': 'drv0', 'target': 'TEST_DIR/o.IMGFMT', 'format': 'IMGFMT', 'sync': 'none'}}
+{'execute': 'blockdev-add',
+          'arguments': {
+              'node-name': 'drv0',
+              'driver': 'IMGFMT',
+              'file': {
+                  'driver': 'file',
+                  'filename': 'TEST_DIR/t.IMGFMT'
+              }}}
+{"return": {}}
+{'execute': 'drive-backup',
+'arguments': {'job-id': 'job0',
+'device': 'drv0',
+'target': 'TEST_DIR/o.IMGFMT',
+'format': 'IMGFMT',
+'sync': 'none'}}
 Formatting 'TEST_DIR/o.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "paused", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"error": {"class": "GenericError", "desc": "Node 'drv0' is busy: node is used as backing hd of 'NODE_NAME'"}}
-{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
+{'execute': 'block-job-cancel',
+          'arguments': {'device': 'job0'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "aborting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_CANCELLED", "data": {"device": "job0", "len": 1048576, "offset": 0, "speed": 0, "type": "backup"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"return": {}}
 
 === Testing drive-mirror ===
 
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'drv0', 'driver': 'IMGFMT', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' }}}
-{"return": {}}
-{'execute': 'drive-mirror', 'arguments': {'job-id': 'job0', 'device': 'drv0', 'target': 'TEST_DIR/o.IMGFMT', 'format': 'IMGFMT', 'sync': 'none'}}
+{'execute': 'blockdev-add',
+          'arguments': {
+              'node-name': 'drv0',
+              'driver': 'IMGFMT',
+              'file': {
+                  'driver': 'file',
+                  'filename': 'TEST_DIR/t.IMGFMT'
+              }}}
+{"return": {}}
+{'execute': 'drive-mirror',
+'arguments': {'job-id': 'job0',
+'device': 'drv0',
+'target': 'TEST_DIR/o.IMGFMT',
+'format': 'IMGFMT',
+'sync': 'none'}}
 Formatting 'TEST_DIR/o.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "mirror"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"error": {"class": "GenericError", "desc": "Node 'drv0' is busy: block device is in use by block job: mirror"}}
-{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
+{'execute': 'block-job-cancel',
+          'arguments': {'device': 'job0'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "mirror"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"return": {}}
 
 === Testing active block-commit ===
 
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'drv0', 'driver': 'IMGFMT', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' }}}
-{"return": {}}
-{'execute': 'block-commit', 'arguments': {'job-id': 'job0', 'device': 'drv0'}}
+{'execute': 'blockdev-add',
+          'arguments': {
+              'node-name': 'drv0',
+              'driver': 'IMGFMT',
+              'file': {
+                  'driver': 'file',
+                  'filename': 'TEST_DIR/t.IMGFMT'
+              }}}
+{"return": {}}
+{'execute': 'block-commit',
+'arguments': {'job-id': 'job0', 'device': 'drv0'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "commit"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"error": {"class": "GenericError", "desc": "Node 'drv0' is busy: block device is in use by block job: commit"}}
-{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
+{'execute': 'block-job-cancel',
+          'arguments': {'device': 'job0'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "commit"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"return": {}}
 
 === Testing non-active block-commit ===
 
 wrote 1048576/1048576 bytes at offset 0
 1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'drv0', 'driver': 'IMGFMT', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' }}}
-{"return": {}}
-{'execute': 'block-commit', 'arguments': {'job-id': 'job0', 'device': 'drv0', 'top': 'TEST_DIR/m.IMGFMT', 'speed': 1}}
+{'execute': 'blockdev-add',
+          'arguments': {
+              'node-name': 'drv0',
+              'driver': 'IMGFMT',
+              'file': {
+                  'driver': 'file',
+                  'filename': 'TEST_DIR/t.IMGFMT'
+              }}}
+{"return": {}}
+{'execute': 'block-commit',
+'arguments': {'job-id': 'job0',
+'device': 'drv0',
+'top':    'TEST_DIR/m.IMGFMT',
+'speed':  1}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"error": {"class": "GenericError", "desc": "Node drv0 is in use"}}
-{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
+{'execute': 'block-job-cancel',
+          'arguments': {'device': 'job0'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "aborting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_CANCELLED", "data": {"device": "job0", "len": 1048576, "offset": 524288, "speed": 1, "type": "commit"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"return": {}}
 
 === Testing block-stream ===
 
 wrote 1048576/1048576 bytes at offset 0
 1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'drv0', 'driver': 'IMGFMT', 'file': { 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT' }}}
-{"return": {}}
-{'execute': 'block-stream', 'arguments': {'job-id': 'job0', 'device': 'drv0', 'speed': 1}}
+{'execute': 'blockdev-add',
+          'arguments': {
+              'node-name': 'drv0',
+              'driver': 'IMGFMT',
+              'file': {
+                  'driver': 'file',
+                  'filename': 'TEST_DIR/t.IMGFMT'
+              }}}
+{"return": {}}
+{'execute': 'block-stream',
+'arguments': {'job-id': 'job0',
+'device': 'drv0',
+'speed': 1}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"error": {"class": "GenericError", "desc": "Node drv0 is in use"}}
-{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
+{'execute': 'block-job-cancel',
+          'arguments': {'device': 'job0'}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "aborting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_CANCELLED", "data": {"device": "job0", "len": 1048576, "offset": 524288, "speed": 1, "type": "stream"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
-{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
+{'execute': 'blockdev-del',
+          'arguments': {'node-name': 'drv0'}}
 {"return": {}}
 *** done
diff --git a/tests/qemu-iotests/143.out b/tests/qemu-iotests/143.out
index fc9c0a761f..9ec5888e0e 100644
--- a/tests/qemu-iotests/143.out
+++ b/tests/qemu-iotests/143.out
@@ -1,7 +1,9 @@
 QA output created by 143
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'nbd-server-start', 'arguments': { 'addr': { 'type': 'unix', 'data': { 'path': 'SOCK_DIR/nbd' }}}}
+{ 'execute': 'nbd-server-start',
+       'arguments': { 'addr': { 'type': 'unix',
+                                'data': { 'path': 'SOCK_DIR/nbd' }}}}
 {"return": {}}
 qemu-io: can't open device nbd+unix:///no_such_export?socket=SOCK_DIR/nbd: Requested export not available
 server reported: export 'no_such_export' not present
diff --git a/tests/qemu-iotests/144.out b/tests/qemu-iotests/144.out
index 13e0c4f5a7..b3b4812015 100644
--- a/tests/qemu-iotests/144.out
+++ b/tests/qemu-iotests/144.out
@@ -8,19 +8,33 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=536870912
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'virtio0', 'snapshot-file':'TEST_DIR/tmp.IMGFMT', 'format': 'IMGFMT' } }
+{ 'execute': 'blockdev-snapshot-sync',
+                                'arguments': {
+                                             'device': 'virtio0',
+                                             'snapshot-file':'TEST_DIR/tmp.IMGFMT',
+                                             'format': 'IMGFMT'
+                                             }
+                    }
 Formatting 'TEST_DIR/tmp.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=536870912 backing_file=TEST_DIR/t.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
 
 === Performing block-commit on active layer ===
 
-{ 'execute': 'block-commit', 'arguments': { 'device': 'virtio0' } }
+{ 'execute': 'block-commit',
+                                'arguments': {
+                                                 'device': 'virtio0'
+                                              }
+                    }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "virtio0"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "virtio0", "len": 0, "offset": 0, "speed": 0, "type": "commit"}}
-{ 'execute': 'block-job-complete', 'arguments': { 'device': 'virtio0' } }
+{ 'execute': 'block-job-complete',
+                                'arguments': {
+                                                'device': 'virtio0'
+                                              }
+                   }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "virtio0"}}
@@ -30,7 +44,13 @@ Formatting 'TEST_DIR/tmp.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off co
 
 === Performing Live Snapshot 2 ===
 
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'virtio0', 'snapshot-file':'TEST_DIR/tmp2.IMGFMT', 'format': 'IMGFMT' } }
+{ 'execute': 'blockdev-snapshot-sync',
+                                'arguments': {
+                                                'device': 'virtio0',
+                                                'snapshot-file':'TEST_DIR/tmp2.IMGFMT',
+                                                'format': 'IMGFMT'
+                                              }
+                   }
 Formatting 'TEST_DIR/tmp2.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=536870912 backing_file=TEST_DIR/t.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
 *** done
diff --git a/tests/qemu-iotests/153.out b/tests/qemu-iotests/153.out
index fcaa71aeee..ff8e55864a 100644
--- a/tests/qemu-iotests/153.out
+++ b/tests/qemu-iotests/153.out
@@ -425,7 +425,8 @@ _qemu_img_wrapper commit -b TEST_DIR/t.qcow2.b TEST_DIR/t.qcow2.c
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
 Adding drive
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT' } }
 {"return": "OKrn"}
 
 _qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
@@ -435,25 +436,30 @@ Creating overlay with qemu-img when the guest is running should be allowed
 
 _qemu_img_wrapper create -f qcow2 -b TEST_DIR/t.qcow2 -F qcow2 TEST_DIR/t.qcow2.overlay
 == Closing an image should unlock it ==
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d0' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line': 'drive_del d0' } }
 {"return": ""}
 
 _qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
 Adding two and closing one
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT,readonly=on' } }
+{ 'execute': 'human-monitor-command',
+           'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT,readonly=on' } }
 {"return": "OKrn"}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d1,file=TEST_DIR/t.IMGFMT,readonly=on' } }
+{ 'execute': 'human-monitor-command',
+           'arguments': { 'command-line': 'drive_add 0 if=none,id=d1,file=TEST_DIR/t.IMGFMT,readonly=on' } }
 {"return": "OKrn"}
 
 _qemu_img_wrapper info TEST_DIR/t.qcow2
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d0' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line': 'drive_del d0' } }
 {"return": ""}
 
 _qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
 qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
 Is another process using the image [TEST_DIR/t.qcow2]?
 Closing the other
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d1' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line': 'drive_del d1' } }
 {"return": ""}
 
 _qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
diff --git a/tests/qemu-iotests/156.out b/tests/qemu-iotests/156.out
index cce167b63f..4a22f0c41a 100644
--- a/tests/qemu-iotests/156.out
+++ b/tests/qemu-iotests/156.out
@@ -8,24 +8,37 @@ wrote 196608/196608 bytes at offset 65536
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
 Formatting 'TEST_DIR/t.IMGFMT.overlay', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'source', 'snapshot-file': 'TEST_DIR/t.IMGFMT.overlay', 'format': 'IMGFMT', 'mode': 'existing' } }
+{ 'execute': 'blockdev-snapshot-sync',
+       'arguments': { 'device': 'source',
+                      'snapshot-file': 'TEST_DIR/t.IMGFMT.overlay',
+                      'format': 'IMGFMT',
+                      'mode': 'existing' } }
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "write -P 3 128k 128k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "write -P 3 128k 128k"' } }
 wrote 131072/131072 bytes at offset 131072
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
 Formatting 'TEST_DIR/t.IMGFMT.target.overlay', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.target backing_fmt=IMGFMT
-{ 'execute': 'drive-mirror', 'arguments': { 'device': 'source', 'target': 'TEST_DIR/t.IMGFMT.target.overlay', 'mode': 'existing', 'sync': 'top' } }
+{ 'execute': 'drive-mirror',
+       'arguments': { 'device': 'source',
+                      'target': 'TEST_DIR/t.IMGFMT.target.overlay',
+                      'mode': 'existing',
+                      'sync': 'top' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "source"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "source"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "source"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "source", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "write -P 4 192k 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "write -P 4 192k 64k"' } }
 wrote 65536/65536 bytes at offset 196608
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'block-job-complete', 'arguments': { 'device': 'source' } }
+{ 'execute': 'block-job-complete',
+       'arguments': { 'device': 'source' } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "source"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "source"}}
@@ -33,19 +46,27 @@ wrote 65536/65536 bytes at offset 196608
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "source"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "source"}}
 
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "read -P 1 0k 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "read -P 1 0k 64k"' } }
 read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "read -P 2 64k 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "read -P 2 64k 64k"' } }
 read 65536/65536 bytes at offset 65536
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "read -P 3 128k 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "read -P 3 128k 64k"' } }
 read 65536/65536 bytes at offset 131072
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io source "read -P 4 192k 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io source "read -P 4 192k 64k"' } }
 read 65536/65536 bytes at offset 196608
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
diff --git a/tests/qemu-iotests/161.out b/tests/qemu-iotests/161.out
index 3d8d89a9da..6cc285afcf 100644
--- a/tests/qemu-iotests/161.out
+++ b/tests/qemu-iotests/161.out
@@ -7,18 +7,23 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
 {"return": ""}
 
 *** Stream and then change an option on the backing file
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'block-stream', 'arguments': { 'device': 'none0', 'base': 'TEST_DIR/t.IMGFMT.base' } }
+{ 'execute': 'block-stream',        'arguments': { 'device': 'none0',
+                      'base': 'TEST_DIR/t.IMGFMT.base' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "none0"}}
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "none0", "len": 1048576, "offset": 1048576, "speed": 0, "type": "stream"}}
@@ -33,11 +38,14 @@ Formatting 'TEST_DIR/t.IMGFMT.int', fmt=IMGFMT size=1048576 backing_file=TEST_DI
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.int backing_fmt=IMGFMT
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'block-commit', 'arguments': { 'device': 'none0', 'top': 'TEST_DIR/t.IMGFMT.int' } }
+{ 'execute': 'block-commit',        'arguments': { 'device': 'none0',
+                      'top': 'TEST_DIR/t.IMGFMT.int' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "none0"}}
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io none0 "reopen -o backing.detect-zeroes=on"' } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "none0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "none0", "len": 1048576, "offset": 1048576, "speed": 0, "type": "commit"}}
diff --git a/tests/qemu-iotests/173.out b/tests/qemu-iotests/173.out
index b5114b5c79..2d6490d680 100644
--- a/tests/qemu-iotests/173.out
+++ b/tests/qemu-iotests/173.out
@@ -6,11 +6,30 @@ Formatting 'TEST_DIR/image.snp1', fmt=IMGFMT size=104857600
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'arguments': { 'device': 'disk2', 'format': 'IMGFMT', 'mode': 'existing', 'snapshot-file': 'TEST_DIR/image.snp1', 'snapshot-node-name': 'snp1' }, 'execute': 'blockdev-snapshot-sync' }
+{ 'arguments': {
+                        'device': 'disk2',
+                        'format': 'IMGFMT',
+                        'mode': 'existing',
+                        'snapshot-file': 'TEST_DIR/image.snp1',
+                        'snapshot-node-name': 'snp1'
+                     },
+                     'execute': 'blockdev-snapshot-sync'
+                   }
 {"return": {}}
-{ 'arguments': { 'backing-file': 'image.base', 'device': 'disk2', 'image-node-name': 'snp1' }, 'execute': 'change-backing-file' }
+{ 'arguments': {
+                        'backing-file': 'image.base',
+                        'device': 'disk2',
+                        'image-node-name': 'snp1'
+                     },
+                     'execute': 'change-backing-file'
+                   }
 {"return": {}}
-{ 'arguments': { 'base': 'TEST_DIR/image.base', 'device': 'disk2' }, 'execute': 'block-stream' }
+{ 'arguments': {
+                        'base': 'TEST_DIR/image.base',
+                        'device': 'disk2'
+                      },
+                      'execute': 'block-stream'
+                   }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk2"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk2"}}
 {"return": {}}
diff --git a/tests/qemu-iotests/182.out b/tests/qemu-iotests/182.out
index ce23340670..57f7265458 100644
--- a/tests/qemu-iotests/182.out
+++ b/tests/qemu-iotests/182.out
@@ -10,16 +10,42 @@ Is another process using the image [TEST_DIR/t.qcow2]?
 
 {'execute': 'qmp_capabilities'}
 {"return": {}}
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'node0', 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT', 'locking': 'on' } }
-{"return": {}}
-{'execute': 'blockdev-snapshot-sync', 'arguments': { 'node-name': 'node0', 'snapshot-file': 'TEST_DIR/t.IMGFMT.overlay', 'snapshot-node-name': 'node1' } }
+{'execute': 'blockdev-add',
+      'arguments': {
+          'node-name': 'node0',
+          'driver': 'file',
+          'filename': 'TEST_DIR/t.IMGFMT',
+          'locking': 'on'
+          } }
+{"return": {}}
+{'execute': 'blockdev-snapshot-sync',
+      'arguments': {
+          'node-name': 'node0',
+          'snapshot-file': 'TEST_DIR/t.IMGFMT.overlay',
+          'snapshot-node-name': 'node1'
+      } }
 Formatting 'TEST_DIR/t.qcow2.overlay', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=197120 backing_file=TEST_DIR/t.qcow2 backing_fmt=file lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{'execute': 'blockdev-add', 'arguments': { 'node-name': 'node1', 'driver': 'file', 'filename': 'TEST_DIR/t.IMGFMT', 'locking': 'on' } }
-{"return": {}}
-{'execute': 'nbd-server-start', 'arguments': { 'addr': { 'type': 'unix', 'data': { 'path': 'SOCK_DIR/nbd.socket' } } } }
-{"return": {}}
-{'execute': 'nbd-server-add', 'arguments': { 'device': 'node1' } }
+{'execute': 'blockdev-add',
+      'arguments': {
+          'node-name': 'node1',
+          'driver': 'file',
+          'filename': 'TEST_DIR/t.IMGFMT',
+          'locking': 'on'
+          } }
+{"return": {}}
+{'execute': 'nbd-server-start',
+      'arguments': {
+          'addr': {
+              'type': 'unix',
+              'data': {
+                  'path': 'SOCK_DIR/nbd.socket'
+              } } } }
+{"return": {}}
+{'execute': 'nbd-server-add',
+      'arguments': {
+          'device': 'node1'
+      } }
 {"return": {}}
 
 === Testing failure to loosen restrictions ===
diff --git a/tests/qemu-iotests/183.out b/tests/qemu-iotests/183.out
index d4be2cb2de..fd9c2e52a5 100644
--- a/tests/qemu-iotests/183.out
+++ b/tests/qemu-iotests/183.out
@@ -11,18 +11,23 @@ Formatting 'TEST_DIR/t.IMGFMT.dest', fmt=IMGFMT size=67108864
 
 === Write something on the source ===
 
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io disk "write -P 0x55 0 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io disk "write -P 0x55 0 64k"' } }
 wrote 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io disk "read -P 0x55 0 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io disk "read -P 0x55 0 64k"' } }
 read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
 
 === Do block migration to destination ===
 
-{ 'execute': 'migrate', 'arguments': { 'uri': 'unix:SOCK_DIR/migrate', 'blk': true } }
+{ 'execute': 'migrate',
+       'arguments': { 'uri': 'unix:SOCK_DIR/migrate', 'blk': true } }
 {"return": {}}
 { 'execute': 'query-status' }
 {"return": {"status": "postmigrate", "singlestep": false, "running": false}}
@@ -32,11 +37,15 @@ read 65536/65536 bytes at offset 0
 { 'execute': 'query-status' }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "RESUME"}
 {"return": {"status": "running", "singlestep": false, "running": true}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io disk "read -P 0x55 0 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io disk "read -P 0x55 0 64k"' } }
 read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io disk "write -P 0x66 1M 64k"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io disk "write -P 0x66 1M 64k"' } }
 wrote 65536/65536 bytes at offset 1048576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
diff --git a/tests/qemu-iotests/185.out b/tests/qemu-iotests/185.out
index 339438ac68..eab55d22bf 100644
--- a/tests/qemu-iotests/185.out
+++ b/tests/qemu-iotests/185.out
@@ -8,20 +8,34 @@ Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
 
 === Creating backing chain ===
 
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'disk', 'snapshot-file': 'TEST_DIR/t.IMGFMT.mid', 'format': 'IMGFMT', 'mode': 'absolute-paths' } }
+{ 'execute': 'blockdev-snapshot-sync',
+       'arguments': { 'device': 'disk',
+                      'snapshot-file': 'TEST_DIR/t.IMGFMT.mid',
+                      'format': 'IMGFMT',
+                      'mode': 'absolute-paths' } }
 Formatting 'TEST_DIR/t.qcow2.mid', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=67108864 backing_file=TEST_DIR/t.qcow2.base backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
-{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'qemu-io disk "write 0 4M"' } }
+{ 'execute': 'human-monitor-command',
+       'arguments': { 'command-line':
+                      'qemu-io disk "write 0 4M"' } }
 wrote 4194304/4194304 bytes at offset 0
 4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {"return": ""}
-{ 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'disk', 'snapshot-file': 'TEST_DIR/t.IMGFMT', 'format': 'IMGFMT', 'mode': 'absolute-paths' } }
+{ 'execute': 'blockdev-snapshot-sync',
+       'arguments': { 'device': 'disk',
+                      'snapshot-file': 'TEST_DIR/t.IMGFMT',
+                      'format': 'IMGFMT',
+                      'mode': 'absolute-paths' } }
 Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=67108864 backing_file=TEST_DIR/t.qcow2.mid backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
 {"return": {}}
 
 === Start commit job and exit qemu ===
 
-{ 'execute': 'block-commit', 'arguments': { 'device': 'disk', 'base':'TEST_DIR/t.IMGFMT.base', 'top': 'TEST_DIR/t.IMGFMT.mid', 'speed': 65536 } }
+{ 'execute': 'block-commit',
+       'arguments': { 'device': 'disk',
+                      'base':'TEST_DIR/t.IMGFMT.base',
+                      'top': 'TEST_DIR/t.IMGFMT.mid',
+                      'speed': 65536 } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
 {"return": {}}
@@ -34,7 +48,10 @@ Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off comp
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'block-commit', 'arguments': { 'device': 'disk', 'base':'TEST_DIR/t.IMGFMT.base', 'speed': 65536 } }
+{ 'execute': 'block-commit',
+       'arguments': { 'device': 'disk',
+                      'base':'TEST_DIR/t.IMGFMT.base',
+                      'speed': 65536 } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
 {"return": {}}
@@ -47,7 +64,12 @@ Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off comp
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'drive-mirror', 'arguments': { 'device': 'disk', 'target': 'TEST_DIR/t.IMGFMT.copy', 'format': 'IMGFMT', 'sync': 'full', 'speed': 65536 } }
+{ 'execute': 'drive-mirror',
+       'arguments': { 'device': 'disk',
+                      'target': 'TEST_DIR/t.IMGFMT.copy',
+                      'format': 'IMGFMT',
+                      'sync': 'full',
+                      'speed': 65536 } }
 Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=67108864 lazy_refcounts=off refcount_bits=16
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
@@ -61,7 +83,12 @@ Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 cluster_size=65536 extended_l2=off
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'drive-backup', 'arguments': { 'device': 'disk', 'target': 'TEST_DIR/t.IMGFMT.copy', 'format': 'IMGFMT', 'sync': 'full', 'speed': 65536 } }
+{ 'execute': 'drive-backup',
+       'arguments': { 'device': 'disk',
+                      'target': 'TEST_DIR/t.IMGFMT.copy',
+                      'format': 'IMGFMT',
+                      'sync': 'full',
+                      'speed': 65536 } }
 Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=67108864 lazy_refcounts=off refcount_bits=16
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
@@ -77,7 +104,9 @@ Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 cluster_size=65536 extended_l2=off
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{ 'execute': 'block-stream', 'arguments': { 'device': 'disk', 'speed': 65536 } }
+{ 'execute': 'block-stream',
+       'arguments': { 'device': 'disk',
+                      'speed': 65536 } }
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
 {"return": {}}
diff --git a/tests/qemu-iotests/191.out b/tests/qemu-iotests/191.out
index 11aaf3b691..022021efab 100644
--- a/tests/qemu-iotests/191.out
+++ b/tests/qemu-iotests/191.out
@@ -16,7 +16,11 @@ wrote 65536/65536 bytes at offset 1048576
 
 === Perform commit job ===
 
-{ 'execute': 'block-commit', 'arguments': { 'job-id': 'commit0', 'device': 'top', 'base':'TEST_DIR/t.IMGFMT.base', 'top': 'TEST_DIR/t.IMGFMT.mid' } }
+{ 'execute': 'block-commit',
+       'arguments': { 'job-id': 'commit0',
+                      'device': 'top',
+                      'base':'TEST_DIR/t.IMGFMT.base',
+                      'top': 'TEST_DIR/t.IMGFMT.mid' } }
 {
     "timestamp": {
         "seconds":  TIMESTAMP,
@@ -427,7 +431,11 @@ wrote 65536/65536 bytes at offset 1048576
 
 === Perform commit job ===
 
-{ 'execute': 'block-commit', 'arguments': { 'job-id': 'commit0', 'device': 'top', 'base':'TEST_DIR/t.IMGFMT.base', 'top': 'TEST_DIR/t.IMGFMT.mid' } }
+{ 'execute': 'block-commit',
+       'arguments': { 'job-id': 'commit0',
+                      'device': 'top',
+                      'base':'TEST_DIR/t.IMGFMT.base',
+                      'top': 'TEST_DIR/t.IMGFMT.mid' } }
 {
     "timestamp": {
         "seconds":  TIMESTAMP,
diff --git a/tests/qemu-iotests/223.out b/tests/qemu-iotests/223.out
index f6eac23f04..bbc85289e3 100644
--- a/tests/qemu-iotests/223.out
+++ b/tests/qemu-iotests/223.out
@@ -26,31 +26,48 @@ wrote 2097152/2097152 bytes at offset 2097152
 
 {"execute":"qmp_capabilities"}
 {"return": {}}
-{"execute":"blockdev-add", "arguments":{"driver":"IMGFMT", "node-name":"n", "file":{"driver":"file", "filename":"TEST_DIR/t.IMGFMT"}}}
+{"execute":"blockdev-add",
+  "arguments":{"driver":"IMGFMT", "node-name":"n",
+    "file":{"driver":"file", "filename":"TEST_DIR/t.IMGFMT"}}}
 {"return": {}}
-{"execute":"block-dirty-bitmap-disable", "arguments":{"node":"n", "name":"b"}}
+{"execute":"block-dirty-bitmap-disable",
+  "arguments":{"node":"n", "name":"b"}}
 {"return": {}}
 
 === Set up NBD with normal access ===
 
-{"execute":"nbd-server-add", "arguments":{"device":"n"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n"}}
 {"error": {"class": "GenericError", "desc": "NBD server not running"}}
-{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"SOCK_DIR/nbd"}}}}
+{"execute":"nbd-server-start",
+  "arguments":{"addr":{"type":"unix",
+    "data":{"path":"SOCK_DIR/nbd"}}}}
 {"return": {}}
-{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"SOCK_DIR/nbd1"}}}}
+{"execute":"nbd-server-start",
+  "arguments":{"addr":{"type":"unix",
+    "data":{"path":"SOCK_DIR/nbd1"}}}}
 {"error": {"class": "GenericError", "desc": "NBD server already running"}}
 exports available: 0
-{"execute":"nbd-server-add", "arguments":{"device":"n", "bitmap":"b"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "bitmap":"b"}}
 {"return": {}}
-{"execute":"nbd-server-add", "arguments":{"device":"nosuch"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"nosuch"}}
 {"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n"}}
 {"error": {"class": "GenericError", "desc": "Block export id 'n' is already in use"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b2"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2",
+  "bitmap":"b2"}}
 {"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b3"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2",
+  "bitmap":"b3"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "writable":true, "description":"some text", "bitmap":"b2"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2", "writable":true,
+  "description":"some text", "bitmap":"b2"}}
 {"return": {}}
 exports available: 2
  export: 'n'
@@ -99,12 +116,15 @@ read 2097152/2097152 bytes at offset 2097152
 
 === End qemu NBD server ===
 
-{"execute":"nbd-server-remove", "arguments":{"name":"n"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n"}}
 {"return": {}}
-{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n2"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "n"}}
 {"return": {}}
-{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n2"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "n2"}}
 {"error": {"class": "GenericError", "desc": "Export 'n2' is not found"}}
 {"execute":"nbd-server-stop"}
@@ -114,26 +134,41 @@ read 2097152/2097152 bytes at offset 2097152
 
 === Set up NBD with iothread access ===
 
-{"execute":"x-blockdev-set-iothread", "arguments":{"node-name":"n", "iothread":"io0"}}
+{"execute":"x-blockdev-set-iothread",
+  "arguments":{"node-name":"n", "iothread":"io0"}}
 {"return": {}}
-{"execute":"nbd-server-add", "arguments":{"device":"n"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n"}}
 {"error": {"class": "GenericError", "desc": "NBD server not running"}}
-{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"SOCK_DIR/nbd"}}}}
+{"execute":"nbd-server-start",
+  "arguments":{"addr":{"type":"unix",
+    "data":{"path":"SOCK_DIR/nbd"}}}}
 {"return": {}}
-{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"SOCK_DIR/nbd1"}}}}
+{"execute":"nbd-server-start",
+  "arguments":{"addr":{"type":"unix",
+    "data":{"path":"SOCK_DIR/nbd1"}}}}
 {"error": {"class": "GenericError", "desc": "NBD server already running"}}
 exports available: 0
-{"execute":"nbd-server-add", "arguments":{"device":"n", "bitmap":"b"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "bitmap":"b"}}
 {"return": {}}
-{"execute":"nbd-server-add", "arguments":{"device":"nosuch"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"nosuch"}}
 {"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n"}}
 {"error": {"class": "GenericError", "desc": "Block export id 'n' is already in use"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b2"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2",
+  "bitmap":"b2"}}
 {"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b3"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2",
+  "bitmap":"b3"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}}
-{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "writable":true, "description":"some text", "bitmap":"b2"}}
+{"execute":"nbd-server-add",
+  "arguments":{"device":"n", "name":"n2", "writable":true,
+  "description":"some text", "bitmap":"b2"}}
 {"return": {}}
 exports available: 2
  export: 'n'
@@ -182,12 +217,15 @@ read 2097152/2097152 bytes at offset 2097152
 
 === End qemu NBD server ===
 
-{"execute":"nbd-server-remove", "arguments":{"name":"n"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n"}}
 {"return": {}}
-{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n2"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "n"}}
 {"return": {}}
-{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}
+{"execute":"nbd-server-remove",
+  "arguments":{"name":"n2"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "n2"}}
 {"error": {"class": "GenericError", "desc": "Export 'n2' is not found"}}
 {"execute":"nbd-server-stop"}
diff --git a/tests/qemu-iotests/229.out b/tests/qemu-iotests/229.out
index 7eed393013..7d2bfbfbe6 100644
--- a/tests/qemu-iotests/229.out
+++ b/tests/qemu-iotests/229.out
@@ -8,7 +8,14 @@ wrote 2097152/2097152 bytes at offset 0
 
 === Starting drive-mirror, causing error & stop  ===
 
-{'execute': 'drive-mirror', 'arguments': {'device': 'testdisk', 'format': 'IMGFMT', 'target': 'blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT.dest', 'sync': 'full', 'mode': 'existing', 'on-source-error': 'stop', 'on-target-error': 'stop' }}
+{'execute': 'drive-mirror',
+                 'arguments': {'device': 'testdisk',
+                               'format': 'IMGFMT',
+                               'target': 'blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT.dest',
+                               'sync':   'full',
+                               'mode':   'existing',
+                               'on-source-error': 'stop',
+                               'on-target-error': 'stop' }}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "testdisk"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "testdisk"}}
 {"return": {}}
@@ -17,7 +24,9 @@ wrote 2097152/2097152 bytes at offset 0
 
 === Force cancel job paused in error state  ===
 
-{'execute': 'block-job-cancel', 'arguments': { 'device': 'testdisk', 'force': true}}
+{'execute': 'block-job-cancel',
+                 'arguments': { 'device': 'testdisk',
+                                'force': true}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "testdisk"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "aborting", "id": "testdisk"}}
diff --git a/tests/qemu-iotests/249.out b/tests/qemu-iotests/249.out
index 85acda4635..92ec81db03 100644
--- a/tests/qemu-iotests/249.out
+++ b/tests/qemu-iotests/249.out
@@ -7,24 +7,29 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.
 
 === Send a write command to a drive opened in read-only mode (1)
 
-{ 'execute': 'human-monitor-command', 'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
+{ 'execute': 'human-monitor-command',
+       'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
 {"return": "Block node is read-onlyrn"}
 
 === Run block-commit on base using an invalid filter node name
 
-{ 'execute': 'block-commit', 'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int', 'filter-node-name': '1234'}}
+{ 'execute': 'block-commit',
+       'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int',
+                     'filter-node-name': '1234'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "job0"}}
 {"error": {"class": "GenericError", "desc": "Invalid node name"}}
 
 === Send a write command to a drive opened in read-only mode (2)
 
-{ 'execute': 'human-monitor-command', 'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
+{ 'execute': 'human-monitor-command',
+       'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
 {"return": "Block node is read-onlyrn"}
 
 === Run block-commit on base using the default filter node name
 
-{ 'execute': 'block-commit', 'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int'}}
+{ 'execute': 'block-commit',
+       'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int'}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
 {"return": {}}
@@ -36,6 +41,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.
 
 === Send a write command to a drive opened in read-only mode (3)
 
-{ 'execute': 'human-monitor-command', 'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
+{ 'execute': 'human-monitor-command',
+       'arguments': {'command-line': 'qemu-io none0 "aio_write 0 2k"'}}
 {"return": "Block node is read-onlyrn"}
 *** done
diff --git a/tests/qemu-iotests/308.out b/tests/qemu-iotests/308.out
index b93aceed2e..466e7e0267 100644
--- a/tests/qemu-iotests/308.out
+++ b/tests/qemu-iotests/308.out
@@ -5,42 +5,91 @@ wrote 67108864/67108864 bytes at offset 0
 64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 {'execute': 'qmp_capabilities'}
 {"return": {}}
-{'execute': 'blockdev-add', 'arguments': { 'driver': 'file', 'node-name': 'node-protocol', 'filename': 'TEST_DIR/t.IMGFMT' } }
+{'execute': 'blockdev-add',
+      'arguments': {
+          'driver': 'file',
+          'node-name': 'node-protocol',
+          'filename': 'TEST_DIR/t.IMGFMT'
+      } }
 {"return": {}}
-{'execute': 'blockdev-add', 'arguments': { 'driver': 'IMGFMT', 'node-name': 'node-format', 'file': 'node-protocol' } }
+{'execute': 'blockdev-add',
+      'arguments': {
+          'driver': 'IMGFMT',
+          'node-name': 'node-format',
+          'file': 'node-protocol'
+      } }
 {"return": {}}
 
 === Mountpoint not present ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-err', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse' } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-err',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
+          } }
 {"error": {"class": "GenericError", "desc": "Failed to stat 'TEST_DIR/t.IMGFMT.fuse': No such file or directory"}}
 
 === Mountpoint is a directory ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-err', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse' } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-err',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
+          } }
 {"error": {"class": "GenericError", "desc": "'TEST_DIR/t.IMGFMT.fuse' is not a regular file"}}
 
 === Mountpoint is a regular file ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-mp', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse' } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-mp',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
+          } }
 {"return": {}}
 Images are identical.
 
 === Mount over existing file ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-img', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT' } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-img',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT'
+          } }
 {"return": {}}
 Images are identical.
 
 === Double export ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-err', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse' } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-err',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
+          } }
 {"error": {"class": "GenericError", "desc": "There already is a FUSE export on 'TEST_DIR/t.IMGFMT.fuse'"}}
 
 === Remove export ===
 virtual size: 64 MiB (67108864 bytes)
-{'execute': 'block-export-del', 'arguments': { 'id': 'export-mp' } }
+{'execute': 'block-export-del',
+          'arguments': {
+              'id': 'export-mp'
+          } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
 virtual size: 0 B (0 bytes)
 
 === Writable export ===
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-mp', 'node-name': 'node-format', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-mp',
+              'node-name': 'node-format',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
+          } }
 {"return": {}}
 write failed: Permission denied
 wrote 65536/65536 bytes at offset 1048576
@@ -49,15 +98,30 @@ wrote 65536/65536 bytes at offset 1048576
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 
 === Resizing exports ===
-{'execute': 'block-export-del', 'arguments': { 'id': 'export-mp' } }
+{'execute': 'block-export-del',
+          'arguments': {
+              'id': 'export-mp'
+          } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
-{'execute': 'block-export-del', 'arguments': { 'id': 'export-img' } }
+{'execute': 'block-export-del',
+          'arguments': {
+              'id': 'export-img'
+          } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-img"}}
-{'execute': 'blockdev-del', 'arguments': { 'node-name': 'node-format' } }
+{'execute': 'blockdev-del',
+      'arguments': {
+          'node-name': 'node-format'
+      } }
 {"return": {}}
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-mp', 'node-name': 'node-protocol', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-mp',
+              'node-name': 'node-protocol',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
+          } }
 {"return": {}}
 
 --- Try growing non-growable export ---
@@ -72,10 +136,19 @@ OK: Post-truncate image size is as expected
 OK: Disk usage grew with fallocate
 
 --- Try growing growable export ---
-{'execute': 'block-export-del', 'arguments': { 'id': 'export-mp' } }
+{'execute': 'block-export-del',
+          'arguments': {
+              'id': 'export-mp'
+          } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
-{'execute': 'block-export-add', 'arguments': { 'type': 'fuse', 'id': 'export-mp', 'node-name': 'node-protocol', 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true, 'growable': true } }
+{'execute': 'block-export-add',
+          'arguments': {
+              'type': 'fuse',
+              'id': 'export-mp',
+              'node-name': 'node-protocol',
+              'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true, 'growable': true
+          } }
 {"return": {}}
 65536+0 records in
 65536+0 records out
diff --git a/tests/qemu-iotests/312.out b/tests/qemu-iotests/312.out
index cdd5c40e08..5615146b5c 100644
--- a/tests/qemu-iotests/312.out
+++ b/tests/qemu-iotests/312.out
@@ -52,13 +52,19 @@ read 65536/65536 bytes at offset 2424832
 
 { 'execute': 'qmp_capabilities' }
 {"return": {}}
-{'execute': 'drive-mirror', 'arguments': {'device': 'virtio0', 'format': 'IMGFMT', 'target': 'TEST_DIR/t.IMGFMT.3', 'sync': 'full', 'mode': 'existing' }}
+{'execute': 'drive-mirror',
+                 'arguments': {'device': 'virtio0',
+                               'format': 'IMGFMT',
+                               'target': 'TEST_DIR/t.IMGFMT.3',
+                               'sync':   'full',
+                               'mode':   'existing' }}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "virtio0"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "virtio0", "len": 10485760, "offset": 10485760, "speed": 0, "type": "mirror"}}
-{ 'execute': 'block-job-complete', 'arguments': { 'device': 'virtio0' } }
+{ 'execute': 'block-job-complete',
+       'arguments': { 'device': 'virtio0' } }
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "virtio0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "virtio0"}}
diff --git a/tests/qemu-iotests/common.qemu b/tests/qemu-iotests/common.qemu
index de680cf1c7..ef105dfc39 100644
--- a/tests/qemu-iotests/common.qemu
+++ b/tests/qemu-iotests/common.qemu
@@ -146,14 +146,9 @@ _send_qemu_cmd()
         count=${qemu_cmd_repeat}
         use_error="no"
     fi
-    # This array element extraction is done to accommodate pathnames with spaces
-    if [ -z "${success_or_failure}" ]; then
-        cmd=${@: 1:${#@}-1}
-        shift $(($# - 1))
-    else
-        cmd=${@: 1:${#@}-2}
-        shift $(($# - 2))
-    fi
+
+    cmd=$1
+    shift
 
     # Display QMP being sent, but not HMP (since HMP already echoes its
     # input back to output); decide based on leading '{'