Change signature to zone_callback and have the callback pretend to have done something useful.
Change signature to zone_callback and have the callback pretend to
have done something useful.

pecharmin/bind9,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,each/bind9-collab,each/bind9-collab