Clark Boylan 36ca17c37b Force identity api version 3 against linaro london
Keystone auth and openstacksdk/openstackclient do not do the correct
thing without this setting set. They try v2 even though the discovery
doc at the root url does not list that version as valid. Force version 3
so that things will work again.

Change-Id: I7e1b0189c842bbf9640e2cd50873c9f7992dc8d3
2018-09-12 12:52:19 -07:00
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