[gnome-music/wip/jfelder/mpris-fix-playlist-renamed] mpris: Fix interface name in _on_playlist_renamed

[Jean Felder <jfelder src gnome org>]

commit 461a9e1b9a60396f9d909dfce49a8570c48c7405
Author: Jean Felder <jfelder src gnome org>
Date:   Mon Jun 3 15:01:50 2019 +0200

    mpris: Fix interface name in _on_playlist_renamed
    
    This regression was introduced by commit
    a7c6ce8e5b1b3682b21430873f69d91859ead4f7.

 gnomemusic/mpris.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gnomemusic/mpris.py b/gnomemusic/mpris.py
index 2cb64aa1..96eacf25 100644
--- a/gnomemusic/mpris.py
+++ b/gnomemusic/mpris.py
@@ -526,7 +526,8 @@ class MediaPlayer2Service(Server):
             renamed_playlist)
         self.con.emit_signal(
             None, '/org/mpris/MediaPlayer2',
-            MPRIS.MEDIA_PLAYER2_PLAYLISTS_IFACE, 'PlaylistChanged',
+            MediaPlayer2Service.MEDIA_PLAYER2_PLAYLISTS_IFACE,
+            'PlaylistChanged',
             GLib.Variant.new_tuple(GLib.Variant('(oss)', mpris_playlist)))
 
     @log