[gnome-music/wip/jfelder/playlists-core-rewrite-prep-work: 7/7] playlists: Update copyright header

[Jean Felder <jfelder src gnome org>]

commit 65ec9cf9d9a86cff6111345d3babc3d65edd0b2c
Author: Jean Felder <jfelder src gnome org>
Date:   Wed May 15 00:59:38 2019 +0200

    playlists: Update copyright header

 gnomemusic/playlists.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/gnomemusic/playlists.py b/gnomemusic/playlists.py
index ba5141b8..ffab2464 100644
--- a/gnomemusic/playlists.py
+++ b/gnomemusic/playlists.py
@@ -1,7 +1,4 @@
-# Copyright (c) 2013 Arnel A. Borja <kyoushuu yahoo com>
-# Copyright (c) 2013 Sai Suman Prayaga <suman sai14 gmail com>
-# Copyright (c) 2013 Eslam Mostafa <cseslam gmail com>
-# Copyright (c) 2013 Vadim Rutkovsky <vrutkovs redhat com>
+# Copyright 2019 The GNOME Music developers
 #
 # GNOME Music is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by