Revert "Add `$LOAD_PATH` for RuboCop cops."

tests: handle file leaks and SVN test prompt.

Improve Homebrew/brew line length.

Use 124 max line length everywhere. Also, reduce tap max line length to
189 as Homebrew/homebrew-core has that as a maximum now. In future
Homebrew/homebrew-core will also be reduced to 124 maximum line length.

- Ignore files that are generated by `brew tests`
- Make the SVN tests work without prompting for GitHub's SSL certificate

tests: set HOME.

This is the only way to override the user's Git configuration which can
break tests when e.g. `gpg` cannot be found but signing is requested.

cleanup: fix go_cache cleanup

Fix `CurlApacheMirrorDownloadStrategy` URL resolution.

Avoid network call in `#initialize`.

Skip migration if cache is empty or doesn’t exist.

quarantine: do not automatically follow symlinks

Only migrate cache files containing `--`.

Skip `mtime` for non-existent symlink.

Resolve URL to get real file extension.

[Security] Bump rubyzip from 1.2.1 to 1.2.2 in /docs

Bumps [rubyzip](https://github.com/rubyzip/rubyzip) from 1.2.1 to 1.2.2. **This update includes security fixes.**
- [Release notes](https://github.com/rubyzip/rubyzip/releases)
- [Changelog](https://github.com/rubyzip/rubyzip/blob/master/Changelog.md)
- [Commits](https://github.com/rubyzip/rubyzip/compare/v1.2.1...v1.2.2

)

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

This prevents failure when Casks have broken framework symlinks.

Enable quarantining of Homebrew-Cask's downloads

superenv: Use 02 optimization flag for Linux builds

docs/Maintainer-Guidelines: add lead maintainer guidelines.