As I mentioned, there are many packages in Applications where I have not updated the DocBook headers. My reason is I don't build every one of those packages. I don't like pushing patches I don't test. I have seen one package where the patch would not take (kipi-plugins). I still need to discover why.
Regardless, if you build any of those packages you can find the patch at my web site here:
http://humanreadable.nfshost.com/trinity/patches/docbook/
Recognizing whether the patch is needed is easy. You'll see build failures when making the associated help file index.cache.bz2 packages. Apply the patch when you build a package and see those errors. Let me know when you see build failures after applying the patch too (like I did with kipi-plugins).
Darrell