coding standards - no multiple returns

git-svn-id: http://svn.openlayers.org/trunk/openlayers@892 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/Grid.js

@@ -82,8 +82,7 @@ OpenLayers.Layer.Grid.prototype =
             if (zoomChanged) {
                 this.grid = null;
             }
-            return;
+        } else {
-        }
             if (!this.grid || zoomChanged) {
                 this._initTiles();
             } else { 
@@ -101,6 +100,7 @@ OpenLayers.Layer.Grid.prototype =
                    this.insertColumn(false); 
                 }
             }
+        }
     },
     
     /**