Never mind...tdelibs needed to be rebuilt first.
Whew! I was enjoying being able to pretend I know what I'm doing!
Yes, for clarification for others, all of the DocBook entities are in tdelibs. Every help file uses entities. They are like preprocessor defines --- content holders. When the DocBook files is transformed the entities are changed to the actual text.
I'll try to remember every time I revise entities to remind everybody they need to rebuild tdelibs.
Darrell