Manual follow-on tweaks to get the build green again.
diff --git a/rackspace/client.go b/rackspace/client.go
index 439d846..039f446 100644
--- a/rackspace/client.go
+++ b/rackspace/client.go
@@ -59,7 +59,7 @@
 		&utils.Version{ID: v20, Priority: 20, Suffix: "/v2.0/"},
 	}
 
-	chosen, endpoint, err := utils.ChooseVersion(client.IdentityBase, client.IdentityEndpoint, versions)
+	chosen, endpoint, err := utils.ChooseVersion(client, versions)
 	if err != nil {
 		return err
 	}