Method isLongOption

src/OpenLoco/src/CommandLine.cpp:46–53

        std::string _errorMessage;

        static bool isLongOption(std::string_view arg)
        {
            if (arg.size() >= 3 && arg[0] == '-' && arg[1] == '-')
            {
                return true;
            }
            return false;
        }

        static bool isShortOption(std::string_view arg)
        {