MOSDOp: include reassert_version in print

Signed-off-by: Sage Weil <sage@inktank.com>
ceph_test_rados: wait for commit, not ack

First, this is what we wanted in the first place

Second, if we wait for ACK, we may look at a user_version value that is
not stable.

Fixes: #7705
Signed-off-by: Sage Weil <sage@inktank.com>
Merge pull request #1449 from ceph/wip-7705

ceph_test_rados: wait for commit not ack

Reviewed-by: Samuel Just <sam.just@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>