Minor doc update to clarify that mergeNewParams handles reloading the tiles.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@7450 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/WMS.js

@@ -186,7 +186,8 @@ OpenLayers.Layer.WMS = OpenLayers.Class(OpenLayers.Layer.Grid, {
      * Catch changeParams and uppercase the new params to be merged in
      *     before calling changeParams on the super class.
      * 
-     *     Once params have been changed, we will need to re-init our tiles.
+     *     Once params have been changed, the tiles will be reloaded with
+     *     the new parameters.
      * 
      * Parameters:
      * newParams - {Object} Hashtable of new params to use