Now that the final Rails 2.2.1 release is comming, and that one of the features is to be ready for Ruby 1.9 compatibility, it might be a good idea to merge this tiny patch for boot.rb that will fix a bug on the Rails bootstrap using Ruby 1.9:
http://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/1176
Carlos Paramio