Copyright for command-not-found source package in Trusty

This package was debianized by Michael Vogt  on
Fri,  31 May 2005 10:10:41 +0100.

It was downloaded via bzr from
https://code.launchpad.net/~zkrynicki/command-not-found/main

The ubuntu source is at:
https://code.edge.launchpad.net/~ubuntu-core-dev/command-not-found/ubuntu

Upstream Author: Zygmunt Krynicki 
                 Michael Vogt 

Copyright: GPL, see /usr/share/common-licenses/GPL