no naked returns in go; fix auth v3 unit tests
diff --git a/openstack/cdn/v1/flavors/requests.go b/openstack/cdn/v1/flavors/requests.go
index fc05528..1977fe3 100644
--- a/openstack/cdn/v1/flavors/requests.go
+++ b/openstack/cdn/v1/flavors/requests.go
@@ -15,4 +15,5 @@
 // Get retrieves a specific flavor based on its unique ID.
 func Get(c *gophercloud.ServiceClient, id string) (r GetResult) {
 	_, r.Err = c.Get(getURL(c, id), &r.Body, nil)
+	return
 }