FeedTools + Ruby 1.9.2 + Rails 3

During an upgrade of a RoR app, the following was encountered:

ruby -c /usr/local/rvm/gems/ruby-1.9.2-p0/gems/feedtools-0.2.29/lib/feed_tools/helpers/uri_helper.rb
/usr/local/rvm/gems/ruby-1.9.2-p0/gems/feedtools-0.2.29/lib/feed_tools/helpers/uri_helper.rb:43: invalid multibyte char (US-ASCII)
/usr/local/rvm/gems/ruby-1.9.2-p0/gems/feedtools-0.2.29/lib/feed_tools/helpers/uri_helper.rb:43: invalid multibyte char (US-ASCII)
/usr/local/rvm/gems/ruby-1.9.2-p0/gems/feedtools-0.2.29/lib/feed_tools/helpers/uri_helper.rb:43: syntax error, unexpected $end, expecting ')'
          if IDN::Idna.toASCII('http://www.詹姆斯.com/') ==
                                             ^

To fix, simply add the following to the first line of uri_helper.rb in the feed_tools gem directory:

  # encoding: utf-8

This allows the Ruby interpreter to correctly interpret the file as a UTF-8 file.