Update compatibility comments to 2.1, corresponding to PEP 291 1.13.
diff --git a/Lib/distutils/file_util.py b/Lib/distutils/file_util.py
index e2b1c51..37b152e 100644
--- a/Lib/distutils/file_util.py
+++ b/Lib/distutils/file_util.py
@@ -3,7 +3,7 @@
 Utility functions for operating on single files.
 """
 
-# This module should be kept compatible with Python 1.5.2.
+# This module should be kept compatible with Python 2.1.
 
 __revision__ = "$Id$"