[exim] name of parameter; was update-exim4.conf.conf ...

Marc,

mh> ... renaming would be a terrible pain.

The procedure which seems to work elsewhere is
to introduce the better name as an alias for
the bad name. After a year or two with both
names recognized and the new name in the stock
configuration, people become aware of the new
name. Then you can warn that the old name will
be omitted and eventually omit it.

Regards,          ... Peter E.