[gnome-shell] lookingGlass: Fix referencing undefined variables

[Jasper St. Pierre <jstpierre src gnome org>]

commit 4831d9c3a3b480fb4496a678ce5af79f650dd73c
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Oct 4 16:50:51 2011 -0400

    lookingGlass: Fix referencing undefined variables

 js/ui/lookingGlass.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/lookingGlass.js b/js/ui/lookingGlass.js
index 4db755b..ca827d8 100644
--- a/js/ui/lookingGlass.js
+++ b/js/ui/lookingGlass.js
@@ -159,7 +159,7 @@ function objectToString(o) {
         // special case this since the default is way, way too verbose
         return '<js function>';
     } else {
-        return o.toString();
+        return '' + o;
     }
 }