Updated openstack/openstack
Project: openstack/python-keystoneclient  ce6c54de91f7c129cea11a7648f8668b2f24bca9
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Make _get_utf8_value Python3 compliant

This function now works with both Python 2 and 3.

Thanks to Victor Stinner for helping with this.

Change-Id: I1644db7705f7818471d06fb74a4b9a91956e6b58