rubygems/gemcutter — pull request #1 by walski (2011-11-23 01:00:15+00:00)
Title: Makes yank understand the --key paramter to use different API keys

This enables the user to specify a `--key KEY_NAME`` option. This will look for a key named ``KEY_NAME`` in your ``.gem/credentials`` file (just like it is already possible with ``gem push``).