fix test_py3kwarns
The fact that this was failing and went unnoticed so long seems like a good argument for being able to enable and disble py3kwarnings through Python.
diff --git a/Lib/plat-mac/findertools.py b/Lib/plat-mac/findertools.py
index 038ee09..56e7980 100644
--- a/Lib/plat-mac/findertools.py
+++ b/Lib/plat-mac/findertools.py
@@ -16,7 +16,7 @@
"""
from warnings import warnpy3k
-warnpy3k("In 3.x, the findertools module is removed.")
+warnpy3k("In 3.x, the findertools module is removed.", stacklevel=2)
import Finder
from Carbon import AppleEvents