[gthumb] use autoaudiosink instead of gsettingsaudiosink

[Paolo Bacchilega <paobac src gnome org>]

commit b5dd9255b26e89de60ec38941449fc8a0565c15a
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Mon Jul 31 08:00:42 2017 +0200

    use autoaudiosink instead of gsettingsaudiosink
    
    [bug #785612]

 extensions/slideshow/gth-slideshow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extensions/slideshow/gth-slideshow.c b/extensions/slideshow/gth-slideshow.c
index 8a2724e..f1dc0de 100644
--- a/extensions/slideshow/gth-slideshow.c
+++ b/extensions/slideshow/gth-slideshow.c
@@ -434,7 +434,7 @@ gth_slideshow_show_cb (GtkWidget    *widget,
 
                        self->priv->playbin = gst_element_factory_make ("playbin", "playbin");
                        g_object_set (self->priv->playbin,
-                                     "audio-sink", gst_element_factory_make ("gsettingsaudiosink", 
"audiosink"),
+                                     "audio-sink", gst_element_factory_make ("autoaudiosink", "audiosink"),
                                      "flags", _GST_PLAY_FLAG_AUDIO,
                                      "volume", 1.0,
                                      NULL);