message: Fix broken call to BecomeRemoteServer
diff: @@ -416,7 +416,7 @@ def launch_remote_server():
  def become_remote_server():
  - rd.BecomeRemoteServer('localhost', None, None)
  + rd.BecomeRemoteServer('localhost', 0, None, None)
  def internal_run_test(test_name):
  