10416 zoneadmd leaves trailing comma on link address

Wrote a utility to dump the network zone attributes from inside a zone via zone_getattr()
Before:
Datalink            : 6 - test0
    address         :     [172.27.10.100/24,]
    router          :     [172.27.10.254]

After:
Datalink            : 6 - test0
    address         :     [172.27.10.100/24]
    router          :     [172.27.10.254]


and in both cases, automatic IP allocation from the zone's allowed-address property worked properly.