Method parseFlags

lib/config/flags.cc:182–190

}

void FlagGroup::parseFlags(int argc,
    const char* argv[],
    std::function<bool(const std::string&)> callback)
{
    auto filenames = parseFlagsWithFilenames(argc, argv, callback);
    if (!filenames.empty())
        error(
            "non-option parameter '{}' seen (try --help)", *filenames.begin());
}

static void doLoadConfig(const std::string& filename)
{