This should not happen, but it does sometimes in an autobuild environment. Rather than reporting this by crashing, we report it by showing there is no DNS name.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13716
Signed-off-by: Douglas Bagnall douglas.bagnall@catalyst.net.nz Reviewed-by: Andrew Bartlett abartlet@samba.org Autobuild-User(master): Douglas Bagnall dbagnall@samba.org Autobuild-Date(master): Fri Oct 12 15:27:07 CEST 2018 on sn-devel-144
(cherry picked from commit 2fc855e7)