[orca] Add explicit argument to Gst.init_check()

[Joanmarie Diggs <joanied src gnome org>]

commit 251b5c704baa3a79e41dd9526ff991e3228f3dc6
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Feb 17 08:39:56 2016 -0500

    Add explicit argument to Gst.init_check()

 src/orca/sound.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/sound.py b/src/orca/sound.py
index cba58df..be9a86a 100644
--- a/src/orca/sound.py
+++ b/src/orca/sound.py
@@ -34,7 +34,7 @@ try:
 except:
     _gstreamerAvailable = False
 else:
-    _gstreamerAvailable, args = Gst.init_check()
+    _gstreamerAvailable, args = Gst.init_check(None)
 
 from . import debug
 from .sound_generator import Icon, Tone