Updated openstack/openstack
Project: openstack/python-glanceclient  23b1b67128a8fee64bc50441035be76296a10e4d
null
Python3: do not use the 'file' type

It does not exist in Python 3, so we have to use a workaround.

Change-Id: Ib41b5d12102707004b354835265861710aaba568
Closes-Bug: 1287728