scripted-diff: use self.sync_* methods

-BEGIN VERIFY SCRIPT-
sed -i -e 's/sync_blocks(self.nodes)/self.sync_blocks()/g'     $(git grep -l 'sync_blocks(self.nodes)'   ./test/functional/*.py)
sed -i -e 's/sync_mempools(self.nodes)/self.sync_mempools()/g' $(git grep -l 'sync_mempools(self.nodes)' ./test/functional/*.py)

sed -i -e 's/  sync_blocks(/  self.sync_blocks(/g'     $(git grep -l sync_blocks   ./test/functional/*.py)
sed -i -e 's/  sync_mempools(/  self.sync_mempools(/g' $(git grep -l sync_mempools ./test/functional/*.py)
-END VERIFY SCRIPT-

1 files changed, 2 insertions, 2 deletions

diff --git a/test/functional/rpc_invalidateblock.py b/test/functional/rpc_invalidateblock.py
index d8a1deb2a3..d5bf60c4f1 100755
--- a/test/functional/rpc_invalidateblock.py
+++ b/test/functional/rpc_invalidateblock.py
@@ -35,7 +35,7 @@ class InvalidateTest(BitcoinTestFramework):
 
         self.log.info("Connect nodes to force a reorg")
         connect_nodes_bi(self.nodes, 0, 1)
-        sync_blocks(self.nodes[0:2])
+        self.sync_blocks(self.nodes[0:2])
         assert_equal(self.nodes[0].getblockcount(), 6)
         badhash = self.nodes[1].getblockhash(2)
 
@@ -47,7 +47,7 @@ class InvalidateTest(BitcoinTestFramework):
         self.log.info("Make sure we won't reorg to a lower work chain:")
         connect_nodes_bi(self.nodes, 1, 2)
         self.log.info("Sync node 2 to node 1 so both have 6 blocks")
-        sync_blocks(self.nodes[1:3])
+        self.sync_blocks(self.nodes[1:3])
         assert_equal(self.nodes[2].getblockcount(), 6)
         self.log.info("Invalidate block 5 on node 1 so its tip is now at 4")
         self.nodes[1].invalidateblock(self.nodes[1].getblockhash(5))