Update compatibility comments to 2.1, corresponding to PEP 291 1.13.
diff --git a/Lib/distutils/command/clean.py b/Lib/distutils/command/clean.py
index 41b2277..1844ffe 100644
--- a/Lib/distutils/command/clean.py
+++ b/Lib/distutils/command/clean.py
@@ -4,7 +4,7 @@
 
 # contributed by Bastian Kleineidam <calvin@cs.uni-sb.de>, added 2000-03-18
 
-# This module should be kept compatible with Python 1.5.2.
+# This module should be kept compatible with Python 2.1.
 
 __revision__ = "$Id$"