[gnome-shell] KeyboardStatus: fix showing current layout

[Giovanni Campagna <gcampagna src gnome org>]

commit 06198702c2da5b34db4d74a997d4e5334a01a4fb
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed Feb 23 18:52:35 2011 +0100

    KeyboardStatus: fix showing current layout
    
    Util.spawn accepts an array of strings as the arguments, and will
    not implicitly convert other types.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=643104

 js/ui/status/keyboard.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/status/keyboard.js b/js/ui/status/keyboard.js
index 883c534..ae498e0 100644
--- a/js/ui/status/keyboard.js
+++ b/js/ui/status/keyboard.js
@@ -71,7 +71,7 @@ XKBIndicator.prototype = {
 
         this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
         this.menu.addAction(_("Show Keyboard Layout..."), Lang.bind(this, function() {
-            Util.spawn(['gkbd-keyboard-display', '-g', this._config.get_current_group() + 1]);
+            Util.spawn(['gkbd-keyboard-display', '-g', String(this._config.get_current_group() + 1)]);
         }));
         this.menu.addAction(_("Localization Settings"), function() {
             Util.spawn(['gnome-control-center', 'region']);