Add one-line description.

--HG--
branch : HEAD
diff --git a/man/libzip.mdoc b/man/libzip.mdoc
index 342283e..beb2c36 100644
--- a/man/libzip.mdoc
+++ b/man/libzip.mdoc
@@ -1,6 +1,6 @@
-.\" $NiH: libzip.mdoc,v 1.1 2005/04/15 17:58:56 wiz Exp $
+.\" $NiH: libzip.mdoc,v 1.2 2005/06/09 17:24:15 wiz Exp $
 .\"
-.\" libzip.mdoc -- XXX
+.\" libzip.mdoc -- general overview of available functions
 .\" Copyright (C) 2005 Dieter Baron and Thomas Klausner
 .\"
 .\" This file is part of libzip, a library to manipulate ZIP archives.