[gnome-control-center] sound: Fix incorrectly documented return type

[Bastien Nocera <hadess src gnome org>]

commit e34dd3bb83dfbda6c130c5851453082bc8f2b16a
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Aug 21 17:33:18 2012 +0100

    sound: Fix incorrectly documented return type
    
    gvc_mixer_control_get_stream_from_device returns a GvcMixerStream,
    not a container that contains one of those.

 panels/sound/gvc-mixer-control.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/sound/gvc-mixer-control.c b/panels/sound/gvc-mixer-control.c
index d9ad3dd..c35473e 100644
--- a/panels/sound/gvc-mixer-control.c
+++ b/panels/sound/gvc-mixer-control.c
@@ -486,7 +486,7 @@ gvc_mixer_control_lookup_input_id (GvcMixerControl *control,
  * gvc_mixer_control_get_stream_from_device:
  * @control:
  * @device:
- * Returns: (transfer container) (element-type Gvc.MixerStream):
+ * Returns: (transfer none):
  */
 GvcMixerStream *
 gvc_mixer_control_get_stream_from_device (GvcMixerControl *control,