Freecode is no longer being updated, as per their announcement two weeks ago. Consequently, where possible, folks should try to find an alternative to links that point there.
brewkit.rb changes ENV destructively, so lets not do that everytime a formula
is required. Now it's possible for other tools to require a formula
description without worrying about side-effects.
BrewTestBot
Dominyk Tiller
Jack Nagel
Mike McQuaid
Adam Vandenberg
Max Howell