[rubygems/rubygems] Make sure test does not load system version of Bundler
https://github.com/rubygems/rubygems/commit/d850ea1d95
[rubygems/rubygems] Make sure test does not load system version of Bundler
https://github.com/rubygems/rubygems/commit/d850ea1d95