$ cd mk/flavor/pkg
$ pkglint deinstall.mk replace.mk
Thanks - I had no idea that pkglint could be run on such .mk files. In
my tree, pkglint fails on deinstall with 3 issues after fixing that one.
I have fixed $OLDNAME to ${OLDNAME} and will run a few make replace
cylces, with and without OLDNAME, and check it in if it works ok.