Add --scrub flag alias to cleanup command

[garritfra]

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  • Not necessary IMO, already covered by command parser
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  • This fails on my local machine, but I believe that's an issue with my xcode installation.

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Fixes #17413.

Currently, brew cleanup -s triggers a cleanup with the scrub flag enabled. I would like to introduce a longer alias of this flag, --scrub, for usage in shell-scripts and alike.

[MikeMcQuaid]

TIL this didn't have a longer version! Makes sense to me, thanks a lot for this great first PR, @garritfra!

Not at all a big deal (as many other projects do the opposite) but just for next time: no need to open an issue if you're going to open a PR right after to fix it, can just open the PR.

Thanks again, you rock! ❤️