There are scenarios where an NFS client will mount an NFSv4 export without specifying a callback address.
When running nfsdumpstate under this circumstance, the column output is shifted incorrectly which places the "ClientID" value underneath the "Clientaddr" column.
This diff is a small cosmetic change that prints a blank in the "Clientaddr" column and ensures the data for the columns are aligned appropriately.
Sponsored by: iXsystems