updated comment

git-svn-id: http://svn.openlayers.org/trunk/openlayers@836 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/Google.js

@@ -108,8 +108,8 @@ OpenLayers.Layer.Google.prototype = Object.extend( new OpenLayers.Layer(), {
 
 
         // attach to the drag start and end and we<77>ll set a flag so that
-        //  we dont get recursivity. this is because the events fall through
-        //  the gmaps div and into the main layer div
+        //  we dont get recursivity. this is because when we call setCenter(),
+        //  it calls moveTo() on all layers
         GEvent.addListener(this.gmap, 
                            "dragstart", 
                            this.dragStart.bindAsEventListener(this));