wayneeseguin/rvm — pull request #1276 by charliesome (2012-10-29 12:51:44+00:00)
Title: Use correct archive extension for rubies older than 1.8.4.

RVM is hard coded to use `tar.gz` for Ruby 1.8.4, and `tar.bz2` for all other Rubies.

This patch changes the behaviour so `tar.gz` is used for Ruby 1.8.4 and older.