Use a simpler \note instead of a "See also" section to refer to the

os.walk() generator.

Doc/lib/libposixpath.tex

@@ -238,11 +238,8 @@ directories you must identify them with
 necessary.
 \end{notice}
 
-\begin{seealso}
-  \seemodule{os}{The newer \function{os.walk()} generator supplies similar
-                 functionality and can be easier to use.}
-\end{seealso}
-
+\note{The newer \function{\refmodule{os}.walk()} generator supplies
+      similar functionality and can be easier to use.}
 \end{funcdesc}
 
 \begin{datadesc}{supports_unicode_filenames}