CClash.Compiler.getOption C# (CSharp) Method

        string getOption(string arg)
        {
            if (arg.StartsWith("-") || arg.StartsWith("/"))
            {
                var rv = "/" + arg.Substring(1);
                if (rv.Length > 2) rv = rv.Substring(0, 3);
                return rv;
            }
            return arg;
        }