mounts should use inode64 in quick guide

Change-Id: I370c6bcaa30523385ddb256060d4ac9744d58893
Signed-off-by: Thiago da Silva <thiago@redhat.com>
Reviewed-on: http://review.gluster.org/6013
Reviewed-by: Peter Portante <pportant@redhat.com>
Tested-by: Peter Portante <pportant@redhat.com>