On Sat, 2009-10-10 at 21:10 +0200, SF Markus Elfring wrote: 
> > filterdiff cleans all things that don't belongs to patch and that
> > includes Index ...
> 
> I would prefer to keep all informations intact. 

> Is still any fine-tuning needed for the deletion of unwanted source lines?

I don't understand the question ... , filterdiff ?! 

> The command "cvs diff -u" generates also this data together with the field "RCS file:" which will be lost, too. 

> Would you like to consider such details as supported extensions for the patch data format?

I can't answer on that, I am not the maintainer of sources. 

Regards, 
-- 
Sérgio M. B.