tpope/vim-sensible — pull request #55 by roryokane (2013-07-09 22:02:27+00:00)
Title: Enable syntax folding of XML

The documentation for this setting is at `help xml-folding`.

This won’t do anything unless you also `set foldmethod=syntax`.

I think that most users will like the way this makes working with XML easier more than they dislike the very slight slowdown in syntax highlighting.