[gnome-shell] String formatting: Fix warning

[Adel Gadllah <agadllah src gnome org>]

commit edb50d5dc78b70df666ce962ae7924c3a3fd2151
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Mon Oct 5 17:59:33 2009 +0200

    String formatting: Fix warning
    
    Fix to not trigger a warning like:
    
    JS ERROR: !!!   WARNING: 'anonymous function does not always return a value'
    
    by adding a return ""; at the end of the anonymous function.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=595661

 js/misc/format.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/misc/format.js b/js/misc/format.js
index e6848b5..792d306 100644
--- a/js/misc/format.js
+++ b/js/misc/format.js
@@ -39,6 +39,6 @@ function format() {
                         default:
                             throw new Error('Unsupported conversion character %' + genericGroup);
                     }
-
+                    return ""; // Suppress warning
                 });
 }