[gnome-music] gnome-music.in: Added missing license header

[Marinus Schraal <mschraal src gnome org>]

commit 4c7f565f965f843dc6242e417de05c3535b1d9b7
Author: Pablo Palácios <ppalacios992 gmail com>
Date:   Tue Nov 15 13:58:23 2016 -0200

    gnome-music.in: Added missing license header
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774481

 gnome-music.in |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
---
diff --git a/gnome-music.in b/gnome-music.in
index ee88449..e23e357 100644
--- a/gnome-music.in
+++ b/gnome-music.in
@@ -1,4 +1,27 @@
 #!/usr/bin/env python3
+# Copyright (c) 2016 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
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# GNOME Music 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 GNOME Music; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The GNOME Music authors hereby grant permission for non-GPL compatible
+# GStreamer plugins to be used and distributed together with GStreamer
+# and GNOME Music.  This permission is above and beyond the permissions
+# granted by the GPL license by which GNOME Music is covered.  If you
+# modify this code, you may extend this exception to your version of the
+# code, but you are not obligated to do so.  If you do not wish to do so,
+# delete this exception statement from your version.
 
 import sys
 import signal