aggregate coverage metrics of unit tests across packages (#115)

aggregate coverage metrics of unit tests across packages
diff --git a/openstack/orchestration/v1/stacks/testing/doc.go b/openstack/orchestration/v1/stacks/testing/doc.go
index 7603f83..5b3703e 100644
--- a/openstack/orchestration/v1/stacks/testing/doc.go
+++ b/openstack/orchestration/v1/stacks/testing/doc.go
@@ -1 +1,2 @@
+// orchestration_stacks_v1
 package testing