message: fixes compile warning (gcc)
diff: @@ -99,13 +99,17 @@ void loadConfigFromFile(Config& _config, std::string const& _fileName)
  };
  for (auto const& mapping : mappings)
  + {
  if (auto value = logging[mapping.first]; value)
  + {
  if (value.as<bool>())
  _config.loggingMask |= mapping.second;
  else
  _config.loggingMask &= ~mapping.second;
  }
  }
  + }
  +}
  std::string serializeYaml(Config const& _config)
  {
  