message: Fix file desc leak
  Summary:
  The `fd` no close
  Pull Request resolved:
diff: @@ -149,6 +149,7 @@ void QuickData::load_data(const char* location) {
  std::unique_ptr<MappedFile> file;
  file.reset(MappedFile::mmap_file(
  length, PROT_READ, MAP_PRIVATE, fileno(fd), location, &error_msg));
  + fclose(fd);
  if (file.get() == nullptr) {
  CHECK(!error_msg.empty());
  std::ostringstream error_str;
  