add 2004 to copyright line

--HG--
branch : HEAD
diff --git a/lib/zip_open.c b/lib/zip_open.c
index 4341258..1905264 100644
--- a/lib/zip_open.c
+++ b/lib/zip_open.c
@@ -1,8 +1,8 @@
 /*
-  $NiH: zip_open.c,v 1.19.4.6 2004/04/13 19:47:59 dillo Exp $
+  $NiH: zip_open.c,v 1.20 2004/04/14 14:01:26 dillo Exp $
 
   zip_open.c -- open zip archive
-  Copyright (C) 1999, 2003 Dieter Baron and Thomas Klausner
+  Copyright (C) 1999, 2003, 2004 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <nih@giga.or.at>