Need RCS Id keyword.
diff --git a/lib/zassert.h b/lib/zassert.h
index 77ebf5d..7912676 100644
--- a/lib/zassert.h
+++ b/lib/zassert.h
@@ -1,3 +1,7 @@
+/*
+ * $Id: zassert.h,v 1.2 2004/12/03 18:01:04 ajs Exp $
+ */
+
 #ifndef _QUAGGA_ASSERT_H
 #define _QUAGGA_ASSERT_H