named(8) daemon by providing a new rc.conf knob: named_pidfile
that defaults to the path specified in the system-installed named.conf(5).
Approved by: markm (mentor)
Reviewed by: dougb
Noticed by : Galen Sampson <galen_sampson@yahoo.com>
Dan Pelleg <daniel+bsd@pelleg.org>
PR: conf/46402
MFC: 2 weeks (with re@ approval)