Forgotten to update the number of jQuery.extend related tests.

test/unit/core.js

@@ -517,7 +517,7 @@ test("jQuery.merge()", function() {
 });
 
 test("jQuery.extend(Object, Object)", function() {
-	expect(23);
+	expect(24);
 
 	var settings = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" },
 		options = { xnumber2: 1, xstring2: "x", xxx: "newstring" },