[Dovecot] pop3 uidl when migrating from mbox to maildir

[Giuseppe Giacomini]

Thank you for the reply of my previous post 
(http://www.dovecot.org/list/dovecot/2007-March/020716.html)
now it works, but I have another question about  migrating pop3 account 
(with leave mail on server) to
maildir.
On this post -> 
http://www.dovecot.org/list/dovecot/2006-February/011464.html
you explain how to create  dovecot-uidlist preserving UIDVALIDITY.

Is there someone that have build a script to generate such dovecot-uidlist?

thank you all