brew cask list is broken

[vitorgalvao]

It likely requires a big restructuring. Currently some of its problems are:

• #2063: brew cask list should check arguments individually.
• #2988: Uninstall cask report the cask is not installed while it is.
• #13525: brew cask list in a dir containing installed cask file(s) results in file does not exist error.
• #18291: brew cask list --versions should list all versions of installed casks

@caskroom/maintainers should feel free to expand the list (and close the respective issues) so we can concentrate on a single one. Checkboxes should be ticked as things are solved.

[RandomDSdevel]

@reitermarkus: You forgot to tick the third of the four checkboxes in the list of to-do items @vitorgalvao put in this issue's initial description (I checked, and #13525 has been closed.)

[reitermarkus]

@RandomDSdevel, I could never actually reproduce the third issue, that's why I left it unchecked.

[vitorgalvao]

(I checked, and #13525 has been closed.)

Yes, but it was closed because it was superseded by this issue, not because it was solved.

[RandomDSdevel]

@reitermarkus: Ah, makes sense.

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@vitorgalvao: Ahck, how could I have overlooked that comment?! In that case, you can just ignore my babbling drivel and move on with other things. (😆.)