- This was done with `brew typecheck --update --suggest-typed` which
(as of the previous commit) uses Spoom, yet another gem. I thought I'd
see how well it works. There are no Sorbet errors after these changes!
Instead of only looking at the extension when invoked as part of
Homebrew's formulae' download strategies instead prioritise the
extension if it actually exists. When it does not, fall back to the
magic detection logic which is likely to be more reliable.
Fixes https://github.com/Homebrew/brew/issues/5895
