Rename Homebrew-Cask to Homebrew Cask.

Library/Homebrew/cask/audit.rb

Library/Homebrew/cask/cli.rb

Library/Homebrew/cask/cli/--version.rb

Library/Homebrew/cask/cli/doctor.rb

Library/Homebrew/cask/dsl/caveats.rb

Library/Homebrew/cask/exceptions.rb

Library/Homebrew/cask/installer.rb

Library/Homebrew/cask/utils/quarantine.swift

Library/Homebrew/cask/version.rb

Library/Homebrew/cmd/update-report.rb

Library/Homebrew/extend/os/mac/diagnostic.rb

Library/Homebrew/manpages/brew-cask.1.md

Library/Homebrew/missing_formula.rb

Library/Homebrew/requirement.rb

Library/Homebrew/test/cask/audit_spec.rb

Library/Homebrew/test/cask/cli/--version_spec.rb

Library/Homebrew/test/cask/cli/doctor_spec.rb

.../test/support/helper/spec/shared_context/homebrew_cask.rb

manpages/brew-cask.1

manpages/brew.1