Additional test for container override etag preferences
Additional test for container override etag preferences

Adds one more scenario to the tests for preference of
container etag override values in sysmeta or backend
headers and footers.

Change-Id: Iacdaec8c98c7001029163a9d50321a13dc8d5a19
Related-Change: I074fbecb6440fb1d04279cd892d38d2acc44b47d

tipabu/swift,clayg/swift,psachin/swift,smerritt/swift,smerritt/swift,notmyname/swift,clayg/swift,clayg/swift,swiftstack/swift,psachin/swift,hurricanerix/swift,hurricanerix/swift,psachin/swift,tipabu/swift,redbo/swift,hurricanerix/swift,notmyname/swift,nadeemsyed/swift,hurricanerix/swift,tipabu/swift,matthewoliver/swift,matthewoliver/swift,openstack/swift,smerritt/swift,swiftstack/swift,notmyname/swift,nadeemsyed/swift,prashanthpai/swift,psachin/swift,redbo/swift,clayg/swift,tipabu/swift,nadeemsyed/swift,swiftstack/swift,prashanthpai/swift,openstack/swift,notmyname/swift,smerritt/swift,larsbutler/swift,larsbutler/swift,openstack/swift,matthewoliver/swift,matthewoliver/swift,nadeemsyed/swift,openstack/swift