message: Fix onLog
diff: @@ -1404,7 +1404,7 @@ void Context::log(const Http::RequestHeaderMap* request_headers,
  const Http::ResponseTrailerMap* response_trailers,
  const StreamInfo::StreamInfo& stream_info) {
  if (!http_request_started_) {
  - return;
  + onCreate();
  }
  access_log_request_headers_ = request_headers;
  // ? request_trailers ?
  