add RCS ids

--HG--
branch : HEAD
diff --git a/lib/zip_free.c b/lib/zip_free.c
index 09eb844..aa41736 100644
--- a/lib/zip_free.c
+++ b/lib/zip_free.c
@@ -1,4 +1,6 @@
 /*
+  $NiH$
+
   zip_free.c -- free struct zip
   Copyright (C) 1999 Dieter Baron and Thomas Klaunser