Since /var/nsd/etc/nsd.conf is the default path for nsd's config file, I see no reason to break from the convention, for normal use: "". Same for unbound.
-Matthew Martin Index: rc.conf =================================================================== RCS file: /cvs/src/etc/rc.conf,v retrieving revision 1.189 diff -u -p -r1.189 rc.conf --- rc.conf 24 Apr 2014 15:05:10 -0000 1.189 +++ rc.conf 12 Jun 2014 21:49:29 -0000 @@ -26,8 +26,8 @@ bootparamd_flags=NO # for normal use: "" rbootd_flags=NO # for normal use: "" sshd_flags="" # for normal use: "" named_flags=NO # for normal use: "" -nsd_flags=NO # for normal use: "-c /var/nsd/etc/nsd.conf" -unbound_flags=NO # for normal use: "-c /var/unbound/etc/unbound.conf" +nsd_flags=NO # for normal use: "" +unbound_flags=NO # for normal use: "" ldattach_flags=NO # for normal use: "[options] linedisc cua-device" ntpd_flags=NO # for normal use: "" isakmpd_flags=NO # for normal use: ""