heroku/heroku-buildpack-ruby — pull request #93 by siong1987 (2013-05-02 02:55:58+00:00)
Title: Create database.yml again to make it work with rails 4.0.0.rc.

Reference: https://github.com/rails/rails/commit/dd5a80dc3da794f9296ec199c492a398589257a0.