ceph/ceph — pull request #2865 by yehudasa (2014-11-05 21:23:03+00:00)
Title: rgw: send back ETag on S3 object copy

Fixes: #9479
Backport: firefly, giant
We didn't send the etag back correctly. Original code assumed the etag
resided in the attrs, but attrs only contained request attrs.

Signed-off-by: Yehuda Sadeh