Use cacert values when creating identity client

These were ignored when the client was created with a username and
password.

Change-Id: Id7557a5b07a41c7f79ab1a05ede385da31889940
Closes-Bug: #1284957

openstackclient/identity/client.py

@@ -40,7 +40,10 @@ def make_client(instance):
         LOG.debug('instantiating identity client: token flow')
         client = identity_client(
             endpoint=instance._url,
-            token=instance._token)
+            token=instance._token,
+            cacert=instance._cacert,
+            insecure=instance._insecure,
+        )
     else:
         LOG.debug('instantiating identity client: password flow')
         client = identity_client(