another note for amk

Doc/whatsnew/whatsnew24.tex

@@ -844,6 +844,8 @@ data extractors when used with \function{map()} or
    regular expression pattern \var{A} will be tested against the string; if
    the group didn't match, the pattern \var{B} will be used instead.
 
+% XXX sre is now non-recursive.
+
 \item The \module{weakref} module now supports a wider variety of objects
    including Python functions, class instances, sets, frozensets, deques,
    arrays, files, sockets, and regular expression pattern objects.