More detailled comment for Rule.symbolizer. Non-functional change (references #1526)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@7024 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Rule.js

@@ -65,7 +65,11 @@ OpenLayers.Rule = OpenLayers.Class({
     /**
      * Property: symbolizer
      * {Object} Symbolizer or hash of symbolizers for this rule. If hash of
-     * symbolizers, keys are one or more of ["Point", "Line", "Polygon"]
+     * symbolizers, keys are one or more of ["Point", "Line", "Polygon"]. The
+     * latter if useful if it is required to style e.g. vertices of a line
+     * with a point symbolizer. Note, however, that this is not implemented
+     * yet in OpenLayers, but it is the way how symbolizers are defined in
+     * SLD.
      */
     symbolizer: null,