fix little mistake

tests/test016.js

@@ -3,7 +3,7 @@ var testUndefined;        // variable declared but not defined, set to value of
 var testObj = {};  
 
 result = 1;
-if ((""+test) != "undefined") result = 0; // test variable exists but value not defined, displays undefined
+if ((""+testUndefined) != "undefined") result = 0; // test variable exists but value not defined, displays undefined
 if ((""+testObj.myProp) != "undefined") result = 0; // testObj exists, property does not, displays undefined
 if (!(undefined == null)) result = 0;  // unenforced type during check, displays true
 if (undefined === null) result = 0;// enforce type during check, displays false