Comment out a separator line, since all the others are commented out,

and it would look kind of silly if typeset.

Doc/whatsnew/whatsnew20.tex

@@ -965,7 +965,7 @@ development.
 All this is documented in a new manual, \textit{Distributing Python
 Modules}, that joins the basic set of Python documentation.
 
-======================================================================
+% ======================================================================
 \section{XML Modules}
 
 Python 1.5.2 included a simple XML parser in the form of the