If the user has specified auth-nxdomain, do not warn about the default being changed. Fix typo.
If the user has specified auth-nxdomain, do not warn about the default
being changed.
Fix typo.

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