message: Remove unnecessary exit(0).
diff: @@ -234,7 +234,6 @@ int main(int argc, char* argv[]) {
  Parser parser(&options);
  try {
  parser.parse(s);
  -exit(0);
  } catch (Exception const& ex) {
  std::cerr << "An exception occurred while parsing infile '" << infile
  << "': " << ex.what() << std::endl;
  