Copyright for jnettop source package in Xenial

This package was debianized by Ari Pollak  on
Tue, 18 Feb 2003 15:00:38 -0500.

It was downloaded from 

Upstream Author: Jakup Skopal 
Copyright: Jakub Skopal

License:
GNU General Public License version 2 or later. On Debian systems this can be
found at /usr/share/common-licenses/GPL-2.