message: fix ping.phpt
diff: @@ -553,11 +553,11 @@ enum swReturnType http2_client::parse_frame(zval *return_value)
  }
  http2_client_stream *stream = get_stream(stream_id);
  - // stream has closed
  + // The stream is not found or has closed
  if (stream == NULL)
  {
  - swoole_php_error(E_WARNING, "no stream[%d]", stream_id);
  - return SW_ERROR;
  + swInfo("no stream[%d]", stream_id);
  + return SW_CONTINUE;
  }
  if (type == SW_HTTP2_TYPE_HEADERS)
  {
  