elixir-lang/elixir-lang.github.com — pull request #118 by cromwellryan (2013-07-04 12:08:45+00:00)
Title: Assigning number in Blank.Number.blank? to _ as it's not used

In the protocols section, Blank.Number.blank? takes a named value of 'number'. This isn't used and results in a warning. Changing it to _.