[Serusers] header matching

[Juha Heinanen]

Jan Janak writes:

 > > may there could be a set of textops that operate on the lumps instead of
 > > the original message?
 > 
 >   Yes, that would be possible. Is there any particular case (except the
 >   one mentioned in this thread) you need it for ?

nothings comes into mind right now, but i remember once thinking above
it for some old problem.

what i need now is add new diversion header before existing ones (if
any) added earlier by ser.cfg or that exist in the original request.
is that possible with current append header functions?

-- juha