fixed incomplete error message logged when passed an erroneous selector

@@ -8,6 +8,7 @@ XXXX-XX-XX, v0.6.9
 - fixed [#117](https://github.com/n1k0/casperjs/issues/117) - `fill()` coulnd't `submit()` a form with a submit input named *submit*
 - merged [#122](https://github.com/n1k0/casperjs/pull/122) - allow downloads to be triggered by more than just `GET` requests
 - fixed loaded resources array is now reset adequately [reference discussion](https://groups.google.com/forum/?hl=fr?fromgroups#!topic/casperjs/TCkNzrj1IoA)
+- fixed incomplete error message logged when passed an erroneous selector (xpath and css)
 
 2012-05-20, v0.6.8
 ------------------

@@ -420,7 +420,7 @@
         this.processSelector = function processSelector(selector) {
             var selectorObject = {
                 toString: function toString() {
-                    return this.type + ' selector: ' + this.selector;
+                    return this.type + ' selector: ' + this.path;
                 }
             };
             if (typeof selector === "string") {