nlm: fix rpc.statd typo

Change-Id: I701fd82a8dd5a72727b8035bc6c2861465f1aa1f
BUG: 1089172
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/7585
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>