MSG_ERROR("Marker observation format is not defined: "<<key,SPELL_STRING("Use one of the predefined formats "<<build_all_internal_format_names()<<" or add a -mos <format-filename> argument to the commandline."));
MSG_ERROR("Marker observation format is not defined: "<<key<<". Use one of the predefined formats "<<build_all_internal_format_names()<<" or add a -mos <format-filename> argument to the commandline.","");
// MSG_ERROR("Marker observation format is not defined: " << key, SPELL_STRING("Use one of the predefined formats " << build_all_internal_format_names() << " or add a -mos <format-filename> argument to the commandline."));