use python2.4 explicitly.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15142 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/runUnitTest.py

-#!/usr/bin/python
+#!/usr/bin/python2.4
 import os
 import sys
 import getopt