message: adios_iotest now returns an error code instead of success when an error
  is encoutered during parsing of cmd line args
diff: @@ -66,8 +66,7 @@ int main(int argc, char *argv[])
  << std::endl;
  }
  }
  - MPI_Finalize();
  - return 0;
  + MPI_Abort(settings.appComm, -1);
  }
  try
  @@ -298,10 +297,11 @@ int main(int argc, char *argv[])
  {
  std::cout << "ADIOS " << e.what() << std::endl;
  }
  - MPI_Finalize();
  - return 0;
  + MPI_Abort(settings.appComm, -1);
  }
  }
  + else
  + MPI_Abort (settings.appComm, -1);
  MPI_Finalize();
  return 0;
  