Add comment to Distutil files about requiring 1.5.2 compatibility, as

suggested by PEP 291.

Lib/distutils/archive_util.py

@@ -3,6 +3,8 @@
 Utility functions for creating archive files (tarballs, zip files,
 that sort of thing)."""
 
+# This module should be kept compatible with Python 1.5.2.
+
 __revision__ = "$Id$"
 
 import os