error: Don't append a newline when printing the error hint

Since commit 50b7b00, we have error_append_hint() to conveniently
accumulate Error member @hint.  error_report_err() prints it with a
newline appended.  Consequently, users of error_append_hint() need to
know whether theirs is the final line of the hint to decide whether it
needs a newline.  Not a nice interface.

Change error_report_err() to print just the hint, and the (still few)
users of error_append_hint() to add the required newline.

Cc: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1450370121-5768-7-git-send-email-armbru@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/util/qemu-option.c b/util/qemu-option.c
index a50eceae4a..a2d593ad2b 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -206,7 +206,7 @@ void parse_option_size(const char *name, const char *value,
         default:
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size");
             error_append_hint(errp, "You may use k, M, G or T suffixes for "
-                    "kilobytes, megabytes, gigabytes and terabytes.");
+                    "kilobytes, megabytes, gigabytes and terabytes.\n");
             return;
         }
     } else {
@@ -647,7 +647,7 @@ QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id,
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id",
                        "an identifier");
             error_append_hint(errp, "Identifiers consist of letters, digits, "
-                              "'-', '.', '_', starting with a letter.");
+                              "'-', '.', '_', starting with a letter.\n");
             return NULL;
         }
         opts = qemu_opts_find(list, id);