[orca] Fix typo in debug line

[Joanmarie Diggs <joanied src gnome org>]

commit 5e532752bf9d16016fec1b7485ced92974f2fbcb
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Feb 17 18:15:12 2016 -0500

    Fix typo in debug line

 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 be9a86a..39df4c5 100644
--- a/src/orca/sound.py
+++ b/src/orca/sound.py
@@ -49,7 +49,7 @@ class Player:
 
         if not _gstreamerAvailable:
             msg = 'SOUND ERROR: Gstreamer is not available'
-            debug.println(debug.LEVEL_INFO, mSG, True)
+            debug.println(debug.LEVEL_INFO, msg, True)
             return
 
         self.init()