[gnome-shell] loginDialog: Fix yet another StIconType removal fallout

[Florian MÃllner <fmuellner src gnome org>]

commit fae4cb9e562e1ba7137376e680c0121c8c78a3e6
Author: Florian MÃllner <fmuellner gnome org>
Date:   Sun Nov 11 01:09:09 2012 +0100

    loginDialog: Fix yet another StIconType removal fallout
    
    https://bugzilla.gnome.org/show_bug.cgi?id=688181

 js/gdm/loginDialog.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index f3a1d1f..9118452 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -1287,7 +1287,7 @@ const LoginDialog = new Lang.Class({
     _onOpened: function() {
         Main.ctrlAltTabManager.addGroup(this.dialogLayout,
                                         _("Login Window"),
-                                        'dialog-password',
+                                        'dialog-password-symbolic',
                                         { sortGroup: CtrlAltTab.SortGroup.MIDDLE });
 
     },