ntpd user and group missing when upgrading from sources from 11-stable to 12-current

Dear subscribers,

stable/12 hasn't been branched yet, so it could be not a bug. Since
r336525 make installworld fails on 11-stable when installing world for
12-current without ntpd user/group added. Of course, as a workaround
user and group could be added manually. Mergemeaster also fails when it
is run before installworld, what is IMHO predictable and expected
behaviour. So mergemaster will not help with this issue.

So the question arises, is it a feature or should a PR be submitted?

--  
Marek Zarychta