[docs] typo

[LEE DANIEL JOON]

http://docs.python.org/tutorial/classes.html
-- (where one at least one of the parent classes can be accessed through multiple paths from the bottommost class). 
++ (where at least one of the parent classes can be accessed through multiple paths from the bottommost class).
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/docs/attachments/20100828/cb1dcb81/attachment.html>