Comment out XXX comment; this needn't appear in the formatted

versions.  XXX comments only need to be grep-able.

Doc/lib/libnew.tex

@@ -41,7 +41,7 @@ determine the default values of parameters.
                        lnotab}
 This function is an interface to the \cfunction{PyCode_New()} C
 function.
-XXX This is still undocumented!!!!!!!!!!!
+%XXX This is still undocumented!!!!!!!!!!!
 \end{funcdesc}
 
 \begin{funcdesc}{module}{name}