chore: change license to AGPL3-or-later

As agreed by myself and Alexander Batischev on
https://gitlab.com/obnam/obnam/-/issues/122

Two other people have made minor changes, which I deem to be small
enough that they do not get a say in the overall copyright. Sorry.

Sponsored-by: author

1 files changed, 8 insertions, 11 deletions

diff --git a/debian/copyright b/debian/copyright
index ea31729..043fcc0 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -4,20 +4,17 @@ Upstream-Contact: Lars Wirzenius <liw@liw.fi>
 Source: http://git.liw.fi/obnam2
 
 Files: *
-Copyright: 2020, Lars Wirzenius
-License: GPL-3+
+Copyright: 2020-2021, Lars Wirzenius and others
+License: AGPL-3+
  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 3 of the License, or
- (at your option) any later version.
+ it under the terms of the GNU Affero General Public License as
+ published by the Free Software Foundation, either version 3 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.
+ GNU Affero General Public License for more details.
  .
- You should have received a copy of the GNU General Public License
- along with this program.  If not, see <http://www.gnu.org/licenses/>.
- .
- On a Debian system, you can find a copy of GPL version 3 at
- /usr/share/common-licenses/GPL-3 .
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <https://www.gnu.org/licenses/>.