Copyright for libqalculate source package in Buster

This package was debianized by Martin Waitz  on
Sat, 25 Oct 2003 21:54:01 +0200.

It was downloaded from https://qalculate.github.io/

Upstream Author: Hanna Knutsson 

Copyright (c) 2003-2008, 2016-2018 Hanna Knutsson

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

A copy of the GPL can be found in /usr/share/common-licenses/GPL-2.