433     GetOptException excep;  in getopt()  local
435     getoptImpl(args, cfg, rslt, excep, visitedLongOpts, visitedShortOpts, opts);  in getopt()
437     if (!rslt.helpWanted && excep !is null)  in getopt()
439         throw excep;  in getopt()  local
680     ref GetoptResult rslt, ref GetOptException excep,  in getoptImpl()
694             return getoptImpl(args, cfg, rslt, excep, visitedLongOpts,  in getoptImpl()
703                 excep = new GetOptException("An option name may not be an empty string", excep);  in getoptImpl()
752                 excep = new GetOptException("Required option "  in getoptImpl()
753                     ~ option ~ " was not supplied", excep);  in getoptImpl()
757             getoptImpl(args, cfg, rslt, excep, visitedLongOpts,  in getoptImpl()
789                 throw new GetOptException("Unrecognized option "~a, excep);  in getoptImpl()