[gnome-shell] iconGrid: Fix a typo

[Carlos Soriano <csoriano src gnome org>]

commit db76fb8ff93180f8118d2e5c00dce7a18c72ff8a
Author: Carlos Soriano <carlos soriano89 gmail com>
Date:   Tue Sep 2 23:24:19 2014 +0200

    iconGrid: Fix a typo
    
    It was making icons of the spring animation going/returning to the wrong
    position of the dash icon.

 js/ui/iconGrid.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/iconGrid.js b/js/ui/iconGrid.js
index cd29173..0fc628e 100644
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@@ -519,7 +519,7 @@ const IconGrid = new Lang.Class({
             actorClone.set_size(width, height);
             let scaleX = sourceScaledWidth / width;
             let scaleY = sourceScaledHeight / height;
-            let [adjustedSourcePositionX, adjustedSourcePositionY] = [sourceCenterX - sourceScaledWidth / 2, 
sourceY - sourceScaledHeight / 2];
+            let [adjustedSourcePositionX, adjustedSourcePositionY] = [sourceCenterX - sourceScaledWidth / 2, 
sourceCenterY - sourceScaledHeight / 2];
 
             // Defeat onComplete anonymous function closure
             let isLastItem = index == actors.length - 1;