- This reverts commit 68dbf12220f9a52ddf5ca5eb3aa1b356aa42da3a that was
a revert of commit 68596ec720a50f44ae9c30c5806aa7f2d4bcc96f because I
put the RBI file in the wrong place and Tapioca got rid of it, causing
this week's release to be blocked.
This flag allows you to specify formulae to upgrade, even if
`$HOMEBREW_BUNDLE_NO_UPGRADE` is set.
This is useful for upgrading specific formulae without upgrading all
formulae.
While we're here, let's add Sorbet signatures to the `Bundle` module
because I needed to add a new method there anyway.