Corrected comments on where settrace and setprofile are tested.

Lib/test/test_sys.py

@@ -179,8 +179,8 @@ class SysModuleTest(unittest.TestCase):
         # can't check more than the type, as the user might have changed it
         self.assertIsInstance(sys.getdefaultencoding(), str)
 
-    # testing sys.settrace() is done in test_trace.py
-    # testing sys.setprofile() is done in test_profile.py
+    # testing sys.settrace() is done in test_sys_settrace.py
+    # testing sys.setprofile() is done in test_sys_setprofile.py
 
     def test_setcheckinterval(self):
         with warnings.catch_warnings():