caskroom/homebrew-cask — pull request #7685 by rolandwalker (2014-11-29 18:44:12+00:00)
Title: review/revise plist methods in postflight mini-DSL

* accept index argument to `info_plist` in case of multiple `app` artifacts, defaulting to first
* return `Pathname` object from `info_plist`
* use `@command.run` instead of `system_command` which is intended as an external interface
* quoting