Updated openstack/openstack
Project: openstack-dev/devstack  8901245ef55dc1f68d3a3e7d0002ac2a27d9970e

client-env requires admin permissions

openstack endpoint show identity will not be successful without
admin permissions; this causes exercise.sh to fail because it
claims keystone is not present

Change-Id: I769d70d0439c0b4c7e174a0adad7adcf1938095e
Closes-bug: 1317507