Updated openstack/openstack
Project: openstack/django_openstack_auth  e9798d5965939dd43d5158822c345a77e58fd6c8

Do not use Exception.message

This does not work in Python 3.

Partial-Bug: 1287323
Change-Id: Iac637bc5a6db21b498f6bce5c48134447c73c6c1