Use ActiveSupport’s `#pluralize` and `#to_sentence`.

Library/Homebrew/cask/auditor.rb

Library/Homebrew/cask/cask_dependencies.rb

Library/Homebrew/cask/cmd/doctor.rb

Library/Homebrew/cask/cmd/uninstall.rb

Library/Homebrew/cask/cmd/upgrade.rb

Library/Homebrew/cmd/info.rb

Library/Homebrew/cmd/tap-info.rb

Library/Homebrew/cmd/uninstall.rb

Library/Homebrew/cmd/update-report.rb

Library/Homebrew/cmd/upgrade.rb

Library/Homebrew/dev-cmd/audit.rb

Library/Homebrew/exceptions.rb

Library/Homebrew/formula_installer.rb

Library/Homebrew/global.rb

Library/Homebrew/tap.rb

Library/Homebrew/test/formatter_spec.rb

Library/Homebrew/utils.rb

Library/Homebrew/utils/formatter.rb

...gems/activesupport-5.2.1/lib/active_support/locale/en.yml

...lone/ruby/2.3.0/gems/i18n-1.1.0/lib/i18n/core_ext/hash.rb