rails/rails — pull request #7469 by kennyj (2012-08-28 17:00:12+00:00)
Title: Fixes warnings when executing rake test in ActionMailer. 

I saw many deprecation warnings in http://travis-ci.org/#!/rails/rails/jobs/2262213 and in my box.
I think that it's related to 582a7f459990487659886b90e54c22e055c65870 .