Updated openstack/openstack
Project: openstack/python-keystoneclient  43f8870f66f8d43b0a0635b170a47a73d7be0ac2
null
Don't use private last_request variable

This is exposed in more recent versions of httpretty via a public method
rather than accessing it from the class.

Change-Id: I86949d94ac9b647ef577ee7db0ec4d664d6bc60b