elixir-lang/elixir-lang.github.com — pull request #287 by hamiltop (2014-06-28 17:57:09+00:00)
Title: Add example of Macro.var/2 to Meta guide

Since var!/2 no longer accepts atoms directly, Macro.var/2 is recommended. As a user upgrading to the latest Elixir, this was fairly confusing and I think it's a worthy addition to the hygiene section.