Code review comment for ~bfrk/epics-base:remove-dbfl_type_rec

So far, looking at what changed between the current HEAD and the version I originally based my changes on, I have only considered changes under modules/database. I will now also consider the possibility that some changes outside of modules/database e.g. in modules/ca have invalidated my patch.

It is very unfortunate that some of the changes that happened in the meantime are bulk changes to things like copyright header comments because that means almost every file has been touched.