youtube-dl 2018.01.07
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Created with `brew bump-formula-pr`.
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<img src="https://i.imgur.com/SZpFCYT.png" width="64" height="40">
An `UnsatisfiedRequirements` exception is not caught until https://github.com/Homebrew/brew/blob/4438fe117592475d4ddf255c064d2fd95b541a90/Library/Homebrew/brew.rb#L140, where brew exits.
brew upgrade wouldn't stop just because a single package failed to upgrade, no?
Wait, why does not being able to upgrade htop affect zsh? (By the way, htop doesn't seem to crash on my 10.13 system.)
I'm fine with it. I guess most people never load a zsh module anyway (other than when frameworks use them behind the scene).
I personally do use zsh/pcre in a few scripts, but I don't see why it should be a requirement.