docs: add more missing option descriptions

Library/Homebrew/cmd/--env.rb

Library/Homebrew/cmd/desc.rb

Library/Homebrew/cmd/doctor.rb

Library/Homebrew/cmd/gist-logs.rb

Library/Homebrew/cmd/info.rb

Library/Homebrew/cmd/install.rb

Library/Homebrew/cmd/list.rb

Library/Homebrew/cmd/outdated.rb

Library/Homebrew/cmd/readall.rb

Library/Homebrew/cmd/style.rb

Library/Homebrew/cmd/update-report.rb

Library/Homebrew/dev-cmd/audit.rb

Library/Homebrew/dev-cmd/bottle.rb

Library/Homebrew/dev-cmd/bump-formula-pr.rb

Library/Homebrew/dev-cmd/linkage.rb

docs/Manpage.md

manpages/brew-cask.1

manpages/brew.1