diff --git a/blackhole.c b/blackhole.c
--- a/blackhole.c
+++ b/blackhole.c
@@ -1,10 +1,10 @@
-/*
- *     $Id: blackhole.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $
- * $Source: /development/c/demos/blackhole.c,v $
+/**
+ * test/demos/blackhole.c
+ * Copyright (C) 2008 Markus Broeker
+ *
+ * compile with -O0 or without optimizations or it won't crash
  */
 
-/* compile with -O0 or without optimizations or it won't crash */
-
 #include <stdio.h>
 #include <stdlib.h>