message: Code optimization again
diff: @@ -170,12 +170,12 @@ static bool swoole_http2_is_static_file(swServer *serv, http_context *ctx)
  return false;
  }
  + if (handler.status_code == SW_HTTP_NOT_FOUND)
  + {
  swString null_body;
  null_body.length = 0;
  null_body.str = nullptr;
  - if (handler.status_code == SW_HTTP_NOT_FOUND)
  - {
  ctx->response.status = SW_HTTP_NOT_FOUND;
  swoole_http2_server_do_response(ctx, &null_body);
  @@ -202,7 +202,7 @@ static bool swoole_http2_is_static_file(swServer *serv, http_context *ctx)
  zend::string _filename(handler.get_filename_std_string());
  zval zfilename;
  ZVAL_STR(&zfilename, _filename.get());
  - zval retval;
  + zval retval; /* do not care the retval (the connection will be closed if failed) */
  sw_zend_call_method_with_1_params(ctx->response.zobject, swoole_http_response_ce, NULL, "sendfile", &retval, &zfilename);
  return true;
  