large scale syntactic clean up adding missing semi-colons and curly braces around blocks.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@5002 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Handler/MouseWheel.js

@@ -65,8 +65,9 @@ OpenLayers.Handler.MouseWheel = OpenLayers.Class(OpenLayers.Handler, {
      */
     onWheelEvent: function(e){
         // first check keyboard modifiers
-        if (!this.checkModifiers(e)) return;
-
+        if (!this.checkModifiers(e)) {
+            return;
+        }
         // first determine whether or not the wheeling was inside the map
         var inMap = false;
         var elem = OpenLayers.Event.element(e);