initArg f desc = Arg{ argIndex = f, argAbbr = Nothing, argName = Nothing, argData = Nothing, argDesc = desc }
initArg f desc = Arg{ argIndex = f, argAbbr = Nothing, argName = Nothing, argData = Nothing, argDesc = desc }
initArg f desc = Arg{ argIndex = f, argAbbr = Nothing, argName = Nothing, argData = Nothing, argDesc = desc }