[docs] Typo on http://docs.python.org/2/library/userdict.html#module-UserList

[Zachary Ware]

On Thu, Jan 2, 2014 at 2:52 AM, Finn Ellis <relsqui at chiliahedron.com> wrote:
> "Subclasses of UserList are expect to offer a constructor"
>
> ... probably meant to be "are expected to offer" :)
>

Thanks for the report!  This has been fixed in revision 2631d33ee7fb
and will be live soon.

-- 
Zach