>> use ${start_precmd} to check duplicate sendmail.cf.
>> do not use "err" on failure, it is not that fatal (it's okay if we
>> don't start sendmail)
>
>i'd use `err', because you want the script to fail when you manually
>run it. err (or any other non-zero-exit-condition causing behaviour)
>won't cause the main /etc/rc to halt unless the script names ends in
>`.sh', because except in that case, the script is run in a subshell
>anyway.

	since I return 1 from start_precmd, sendmail does not start.
	I followed other examples like ypserv.  we need a rc.d writer's
	handbook...

itojun