rails/rails — pull request #8546 by hsbt (2012-12-18 01:43:51+00:00)
Title: fix testcase: ruby-2.0.0 warned unused variables

ruby 2.0.0 (r38432) later warned unused variables. if you run `rake test`, some testcase is fail. because this testcase read $stderr with 2.0.0 warning messages.

I think this testcase is enough for confirmation of display warning messages.