This environment variable allows telling Homebrew to use the `SUDO_USER`
variable to `sudo` through that user when Homebrew (Cask) attempts to
run `sudo`.
While we're here, clarify in some messaging that we're running `sudo`
and that that's the password we're asking for; the specific password is
configuration dependent and not the specific password for the user.
Similarly, remove the `Package installers may write to any location`
output; it's kinda spammy and doesn't feel like the right place.
With sudoers one may override default sudo user. This mostly works
provided the admin configured the replacement appropriately. However
there are exceptions that absolutely must be run by root such as
/usr/sbin/installer and, under certain circumstances, /bin/launchctl.
- 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!
- This also required auto-fixes for Layout/EmptyLinesAroundBlockBody and
Layout/InconsistentIndentation once the auto-fixer had got rid of the
"redundant begin"s.
Rather than having to manually keep track of what version each thing in
here is and copy files around by hand on update let's use Bundler's
standalone mode and careful use of `.gitignore` to help us do it.
This means a `bundle update --standalone` will allow us to update all
gems in vendor.
We could consider vendoring other gems this way in future but I'd
suggest only doing this for gems with no dependencies or at least gems
with no native extensions. The only gem this applies to that we
currently use is `ruby-prof` and I'm not convinced it's widely used
enough to warrant vendoring for everyone. Perhaps that's another
criteria: it should be functionality that's used by non-developer
commands and/or normal Homebrew usage.
