Autoappending a static postfix to homedirectory-field

[Christian Rost <chr@baltic-online.de>]

Hello,
I'm already running an openldap server (2.3.27) and it works 
very well. Now i need some kind of a "virtual" 
account/posixAccount/shadowAccount-subtree which should be adressed
as: ... ou=people ou=testing ...

To the homeDirectory-field the static postfix "/testing" should be
appended. All other fields should have the same values as
in ou=people.

Can you tell me how to achieve this with minimum changes to my
actual server-config?

Regards
Christian