Copyright for libnetfilter-acct source package in Xenial

This package was debianized (pretty much a search and replace on
the libnetfilter-conntrack3 package build) by Laurence J. Lane 
 on Tue, 23 Oct 2012 15:59:56 -0400

It was downloaded from http://www.netfilter.org/projects/libnetfilter_acct/downloads.html

Upstream Author:
Pablo Neira Ayuso 

Copyright:

  (C) 2011 by Pablo Neira Ayuso                                                                                                          
  (C) 2011 by Intra2net AG                                                                                                          
                                                                                                                                                              
  This program is free software; you can redistribute it and/or modify                                                                                        
  it under the terms of the Lesser GNU General Public License as published                                                                                    
  by the Free Software Foundation; either version 2.1 of the License, or                                                                                      
  (at your option) any later version.                

On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL'.