Put something non-test in acceptance/../identity/v3.
diff --git a/acceptance/openstack/identity/v3/pkg.go b/acceptance/openstack/identity/v3/pkg.go
new file mode 100644
index 0000000..d3b5573
--- /dev/null
+++ b/acceptance/openstack/identity/v3/pkg.go
@@ -0,0 +1,2 @@
+// Package v3 contains acceptance tests for identity v3 resources.
+package v3