Ignore any version of Go, when it is a dependency of a bottle

Share the regex where possible and otherwise ensure they are identical.

brew audit: avoid error on head-only formulae

cask dsl versions: add minor_patch

Fix `sudo` “Sorry, try again.” delay.

Mojave: require CLT header package

brew style: assume file args are non-formulae when passed --rspec

brew.sh: enable linkage cache for developers.

bump-formula-pr: don't unset --mirror= value

rubocop: exclude .simplecov under vendor

Refactor `.simplecov`.

remove appcast checkpoints

Bump rspec-retry from 0.6.0 to 0.6.1 in /Library/Homebrew/test

Bumps [rspec-retry](https://github.com/noredink/rspec-retry) from 0.6.0 to 0.6.1.
- [Release notes](https://github.com/noredink/rspec-retry/releases)
- [Changelog](https://github.com/NoRedInk/rspec-retry/blob/master/changelog.md)
- [Commits](https://github.com/noredink/rspec-retry/compare/v0.6.0...v0.6.1

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

brew style zsh completion: complete files

This seems stable on CI so I think we can expose it to more people.

Support constants in `DependencyOrder` cop.

Add `stderr` output to exception.