Tiny patch (7641) for broken HTML::Document parsing

In the html-scanner used by ActionPack, the round-trip from text to HTML::Document back to text is currently broken on empty tag pairs:

>> HTML::Document.new("<tag></tag>").root.to_s
=> "<tag>"

It's easily fixed, and I submitted a patch:

http://dev.rubyonrails.org/ticket/7641

Any chance of applying this? Or let me know if it needs more work?

Thanks,

  --Anthony.