caskroom/homebrew-cask — pull request #4873 by rolandwalker (2014-06-14 00:48:43+00:00)
Title: DSL: add `license` stanza

References: #4688.

For forward-compatibility; intentionally left undocumented.

The `license` stanza is not free-form. There is a limited
set of valid symbols, of which the argument must be a member.
(The set will later be documented, and probably needs amendments.)

Version numbers and variants of licenses are intentionally
ommitted. The use-case for `license` is filtering and listing
of Casks. We want to avoid becoming a detailed repository of
application descriptions: that information can be found at the
`homepage` URL.