Modify parser.rb to add a colon between each term and the line break, which `ronn` converts into a definition list.
The <br> that follows ensures each term description is on a new line in the manpage output, and also replaces the
double trailing space for generating the hard return that follows each term in the HTML output.
Also modify man.rb to print environment variables with list markup matching the cask commands, and then drop
trailing colons from both lists of terms (cask commands, env vars) and non-list terms (analytics, bundle, services;
a <br> is added here because it would prevent the term description from being indented in the manpage output).
https://docs.brew.sh/Manpage#cask-command-options-cask

pr-automerge: don't automerge PRs with linux-only label

Expand Livecheck#preprocess_url tests

docs - remove Discourse from communication methods

macOS Big Sur

build(deps-dev): bump html-proofer from 3.16.0 to 3.17.0 in /docs

Bumps [html-proofer](https://github.com/gjtorikian/html-proofer) from 3.16.0 to 3.17.0.
- [Release notes](https://github.com/gjtorikian/html-proofer/releases)
- [Commits](https://github.com/gjtorikian/html-proofer/compare/v3.16.0...v3.17.0

)

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

build(deps): bump rubocop from 1.2.0 to 1.3.0 in /Library/Homebrew

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v1.2.0...v1.3.0

)

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

cleanup.rb: ensure cache exists before touching .cleaned

audit: don't error on old OS X versions

build(deps): bump sorbet from 0.5.6049 to 0.5.6060 in /Library/Homebrew

bintray: fix typo in it comment

non-existant -> non-existent

Bumps [sorbet](https://github.com/sorbet/sorbet) from 0.5.6049 to 0.5.6060.
- [Release notes](https://github.com/sorbet/sorbet/releases)
- [Commits](https://github.com/sorbet/sorbet/commits

)

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

build(deps): bump ruby-macho from 2.2.0 to 2.5.0 in /Library/Homebrew

build(deps): bump sorbet-runtime from 0.5.6040 to 0.5.6060 in /Library/Homebrew

Bumps [sorbet-runtime](https://github.com/sorbet/sorbet) from 0.5.6040 to 0.5.6060.
- [Release notes](https://github.com/sorbet/sorbet/releases)
- [Commits](https://github.com/sorbet/sorbet/commits

)

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

build(deps): bump sorbet from 0.5.6042 to 0.5.6049 in /Library/Homebrew

Bumps [ruby-macho](https://github.com/Homebrew/ruby-macho) from 2.2.0 to 2.5.0.
- [Release notes](https://github.com/Homebrew/ruby-macho/releases)
- [Commits](https://github.com/Homebrew/ruby-macho/compare/2.2.0...v2.5.0

)

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

keg: add codesigning

livecheck: skip disabled formulae

info: restore printing of statistics with `brew info`

bump-cask-pr: fix for casks that have multiple languages