First peer probe defaults in IP even if FQDN is used

Issue

• The first probe using a FQDN will result in IP address when listing peers.

• For example:

# gluster peer status
Number of Peers: 1

Hostname: 138.8.45.53
Uuid: ee9a0323-5304-48b3-a6cb-909b060bdafe
State: Peer in Cluster (Connected)