rubygems/rubygems — pull request #249 by svoop (2012-01-02 13:33:42+00:00)
Title: Support for GEMRC environment variable

This is the patch I've submitted to Rubyforge before the move to Github:

http://rubyforge.org//tracker/index.php?func=detail&aid=28943&group_id=126&atid=578

I'm not quite sure how this should be fitted into the test suite, if you like the idea, you might want to add a test for it yourself or give me a hint and reject the pull request.