rbd: the length of args on create_v3 should be 3 instead of 2
rbd: the length of args on create_v3 should be 3 instead of 2

Signed-off-by: Vicente Cheng <0e6eee66936b7a4b2225fd2d5ebb0c25872c5879@gmail.com>

ceph/go-ceph,ceph/go-ceph,ceph/go-ceph