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/p2p_sendheaders.py b/test/functional/p2p_sendheaders.py
index 7d7d251765..f2a19f05bd 100755
--- a/test/functional/p2p_sendheaders.py
+++ b/test/functional/p2p_sendheaders.py
@@ -225,7 +225,7 @@ class SendHeadersTest(BitcoinTestFramework):
 
         # make sure all invalidated blocks are node0's
         self.nodes[0].generatetoaddress(length, self.nodes[0].get_deterministic_priv_key().address)
-        sync_blocks(self.nodes, wait=0.1)
+        self.sync_blocks(self.nodes, wait=0.1)
         for x in self.nodes[0].p2ps:
             x.wait_for_block_announcement(int(self.nodes[0].getbestblockhash(), 16))
             x.clear_block_announcements()
@@ -234,7 +234,7 @@ class SendHeadersTest(BitcoinTestFramework):
         hash_to_invalidate = self.nodes[1].getblockhash(tip_height - (length - 1))
         self.nodes[1].invalidateblock(hash_to_invalidate)
         all_hashes = self.nodes[1].generatetoaddress(length + 1, self.nodes[1].get_deterministic_priv_key().address)  # Must be longer than the orig chain
-        sync_blocks(self.nodes, wait=0.1)
+        self.sync_blocks(self.nodes, wait=0.1)
         return [int(x, 16) for x in all_hashes]
 
     def run_test(self):