[gnome-shell] gdm: Fix powerMenu icon name

[Debarshi Ray <debarshir src gnome org>]

commit 833cb2556b6bbef3e45f532a77653c05469b06a7
Author: Debarshi Ray <debarshir gnome org>
Date:   Sun Sep 2 14:47:59 2012 +0200

    gdm: Fix powerMenu icon name
    
    Fallout from commit c21b1e5fe00a

 js/gdm/powerMenu.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/gdm/powerMenu.js b/js/gdm/powerMenu.js
index b2c05f1..0a5a66e 100644
--- a/js/gdm/powerMenu.js
+++ b/js/gdm/powerMenu.js
@@ -31,7 +31,7 @@ const PowerMenuButton = new Lang.Class({
     Extends: PanelMenu.SystemStatusButton,
 
     _init: function() {
-        this.parent('system-shutdown', null);
+        this.parent('system-shutdown-symbolic', null);
         this._upClient = new UPowerGlib.Client();
 
         this._loginManager = LoginManager.getLoginManager();