message: Fix for
  Run patch directly when there's nothing to delete.
diff: @@ -308,6 +308,8 @@ def Sync(api_root, mode, labels, shadow):
  subprocess.run(['patch', '-p1'], input=diff, cwd=str(api_root_path.resolve()))
  else:
  sys.exit(1)
  + else:
  + subprocess.run(['patch', '-p1'], input=diff, cwd=str(api_root_path.resolve()))
  with open(os.path.join(api_root, 'BUILD'), 'w') as f:
  formatted_deps = '\n'.join(
  