add comment about go version
diff --git a/openstack/networking/v2/extensions/external/requests.go b/openstack/networking/v2/extensions/external/requests.go
index 937de80..097ae37 100644
--- a/openstack/networking/v2/extensions/external/requests.go
+++ b/openstack/networking/v2/extensions/external/requests.go
@@ -34,7 +34,8 @@
 	// splint to prevent the unit test from failing on Go Tip. We suspect it is a
 	// compiler issue that will hopefully be worked out prior to our next release.
 	// Again, for all the unit tests to pass, this line is necessary and sufficient
-	// at the moment.
+	// at the moment. We should reassess after the Go 1.5 release to determine
+	// if this line is still needed.
 	time.Sleep(0 * time.Millisecond)
 
 	outer, err := o.Parent.ToNetworkCreateMap()