$OpenBSD: patch-algo_flatten_ml,v 1.1 2015/08/30 15:56:12 avsm Exp $
--- algo/flatten.ml.orig	Tue Nov 18 11:42:46 2014
+++ algo/flatten.ml	Mon Aug  3 18:07:28 2015
@@ -6,7 +6,7 @@
 open ExtLib
 open Common
 
-include Util.Logging(struct let label = __FILE__ end) ;;
+include Util.Logging(struct let label = "algo/flatten.ml" end) ;;
 
 let print_list fmt pr sep l =
   match l with
