Updated openstack/openstack
Project: openstack/python-openstackclient  4900c64d091ffe4ec9050cd71845b12db49bd293
null
Produce a useful error message for NoUniqueMatch

Most of the CLIs use a NoUniqueMatch, so produce a useful
error message if that happens.  Added some tests for
find_resource as well.

Change-Id: I85ba61d5f6d1be5bd336a1cc4b02501492905f33
Closes-Bug: #1293846