Changes to vendor/builder?

I'm referring to the vendor folder under activesupport/lib/
active_support folder. Are we supposed to be making changes to the
files in this folder? I just submitted my first patch (a doc patch) to
a file in this folder, and I just realized it could be an external
project. Then I noticed the XML Builder project in RubyForge. I also
just noticed that most of the files under the builder folder are
marked with nodoc, though XmlMarkup and BlankSlate are currently
viewable in the rails documentation.

I'm referring to the vendor folder under activesupport/lib/
active_support folder. Are we supposed to be making changes to the
files in this folder? I just submitted my first patch (a doc patch) to
a file in this folder, and I just realized it could be an external
project. Then I noticed the XML Builder project in RubyForge. I also
just noticed that most of the files under the builder folder are
marked with nodoc, though XmlMarkup and BlankSlate are currently
viewable in the rails documentation.

Yes, builder's an upstream project so you should submit your patches
there first.