Bug#843658: sendmail-cf: Customized sendmail.cf is being overwritten on startup

["Thomas - In:Quality" <thomas@inqualitymedia.com>]

That disclaimer is of limited use for people who bring their own sendmail.cf. ;-) It's a very old and possibly bad 
habit, but it has not been a problem for many years, and I don't even see the point of rebuilding the file unless there 
was an update to the m4 stuff. Maybe "make" can be limited to just the database files for startup?

> Something that appears prominently at the beginning of sendmail.cf (and
> that is not a Debian addition):
>
> ######################################################################
> #####
> #####   DO NOT EDIT THIS FILE!  Only edit the source .mc file.
> #####
> ######################################################################
>
> (The last time I used sendmail (iirc 8.12) in a production environment
> about 15 years ago I hacked around in sendmail.mc and various *.m4
> files, and had a sendmail.cf generated out of these, but never edited
> sendmail.cf manually)
>
> Andreas