patch for documentation

[Lionel P. <li...@al...>]

Hi,

One of Ubuntu users send us a patch on your documentation (see 
attached). Can you check it and see if it is appropriate and in this 
case include it in your future releases.

The original bug is reachable here :
https://bugs.launchpad.net/distros/ubuntu/+source/python-ldap/+bug/73615

Cheers,

Lionel