Flags

[kornypoet]

The logic:

unless flag then @unknown_argvs << flag ; next ; end

does not work correctly. Only when the condition is met will flag be added to @unknown_argvs, however, in order for the condition to be met, flag must be nil, which then stores a nil value in @unknown_argvs. This will not help indicate any unknown flags that may have been passed on the command line.