add a location so that init GeoRSS does not crash. Now all tests pass again

git-svn-id: http://svn.openlayers.org/trunk/openlayers@858 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

tests/test_Layer_GeoRSS.html

@@ -58,7 +58,7 @@
 
     function test_99_Layer_GeoRSS_destroy (t) {
         t.plan( 1 );    
-        layer = new OpenLayers.Layer.GeoRSS('Test Layer');
+        layer = new OpenLayers.Layer.GeoRSS('Test Layer', './georss.txt');
         var map = new OpenLayers.Map('map');
         map.addLayer(layer);
         layer.destroy();