message: remove debug stdout and cleanup
diff: @@ -160,12 +160,9 @@ int command(int argc, const char *argv[]) {
  .c_str(),
  std::fstream::out);
  - int sig_figs
  - = dynamic_cast<int_argument *>(parser.arg("output")->arg("sig_figs"))
  - ->value();
  - std::cout << sig_figs;
  - if (sig_figs != -1) {
  - output_stream << std::setprecision(sig_figs);
  + int_argument * sig_figs_arg = dynamic_cast<int_argument *>(parser.arg("output")->arg("sig_figs"));
  + if (!sig_figs_arg->is_default()) {
  + output_stream << std::setprecision(sig_figs_arg->value());
  }
  stan::callbacks::stream_writer sample_writer(output_stream, "# ");
  