svenfuchs/routing-filter — pull request #44 by tricknotes (2013-03-02 11:24:47+00:00)
Title: Use underscore to gemfile name

appraisal (0.5.1) that is current latest version uses underscore for filename.

- https://github.com/thoughtbot/appraisal/blob/v0.5.1/lib/appraisal/appraisal.rb#L51