Remove stray character

docs/developer/release/release_utils.py

@@ -269,7 +269,7 @@ def commit_tag_and_push(version, path, tag_prefix):
     """Commit the changes made for this release, add a tag for this release, and
     push these changes."""
     # Do nothing (instead of erring) if there is nothing to commit.
-    if execute('git diff-index --quiet HEAD', False, False, working_dir=path)) == 0:
+    if execute('git diff-index --quiet HEAD', False, False, working_dir=path) == 0:
         execute('git commit -a -m "new release %s"' % (version), working_dir=path)
     execute("git tag %s%s" % (tag_prefix, version), working_dir=path)
     push_changes(path)