[gnome-music] window: Replace deprecated add_accelerator call

[Marinus Schraal <mschraal src gnome org>]

commit 12ecb35d50a219659dd7830f4845aa72a6b71b26
Author: Subhadip Jana <subhadip1997a gmail com>
Date:   Tue Jan 9 00:11:21 2018 +0100

    window: Replace deprecated add_accelerator call
    
    Use set_accels_for_action method instead.

 gnomemusic/window.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index 16e7206..96f5185 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -70,7 +70,7 @@ class Window(Gtk.ApplicationWindow):
         self.settings = Gio.Settings.new('org.gnome.Music')
         self.add_action(self.settings.create_action('repeat'))
         selectAll = Gio.SimpleAction.new('selectAll', None)
-        app.add_accelerator('<Primary>a', 'win.selectAll', None)
+        app.set_accels_for_action('win.selectAll', ['<Primary>a'])
         selectAll.connect('activate', self._on_select_all)
         self.add_action(selectAll)
         selectNone = Gio.SimpleAction.new('selectNone', None)