[nsd-users] warning: local hostname 'NOKEY' not found?

[Darren Pilgrim]

I upgraded my NSD master from 3.2.4 to 3.2.7.  When I restarted the 
server and did a 'nsdc notify', I got a long stream of errors like this:

[1298460362] nsd-notify[98129]: warning: local hostname 'NOKEY' not 
found: hostname nor servname provided, or not known

The only difference between each error was the timestamp and pid in 
brackets.  I made no changes to nsd.conf across the upgrade.  My 
nsd.conf has a few dozen zones configured all of which look like this 
(except for the name/zonefile):

zone:
         name: "example.com"
         zonefile: "master/forward/example.com"
         notify: 192.0.2.2 NOKEY
         notify: 192.0.2.3 NOKEY
         notify: 192.0.2.4 NOKEY
         provide-xfr: 192.0.2.2 NOKEY
         provide-xfr: 192.0.2.3 NOKEY
         provide-xfr: 192.0.2.4 NOKEY
         outgoing-interface: 192.0.2.1
         notify-retry: 5

I tried reading the nsd-notify.c, but I can't figure out why nsd would 
try to do a DNS lookup on "NOKEY" as a hostname.