Mike McQuaid 5adb76a5ba
list: fix flag handling.
Fix `-1` and other flags so they're handled correctly with casks. Use
the "right" exceptions for declaring invalid combinations and change
their parent class so that `--help` is printed nicely too.

Fixes #9033
2020-11-03 12:29:58 +00:00
..
2020-10-10 14:59:39 +02:00
2020-11-03 12:29:58 +00:00