message: Improve formatting of options.
diff: @@ -60,11 +60,13 @@ int main(int argc, char *argv[]) {
  opt::positional_options_description optionsPositional;
  optionsPositional.add("config", -1);
  + // clang-format off
  optionsVisible.add_options()
  ("config", opt::value<std::vector<std::string> >(), "server configuration filename")
  ("help", "display this help message")
  ("verbose,v", "enable verbose logging")
  ("debug,d", "enable debug logging");
  + // clang-format on
  optionsAll.add(optionsVisible);
  opt::variables_map values;
  