svscanboot is available in daemontools 0.75 and above.
svscanboot
svscanboot runs the pipeline
svscan /service 2>&1 | readproctitle service errors: .....
with 400 dots.
The last 400 bytes of error messages from svscan
will be visible to ps through readproctitle.
svscanboot sets $PATH to
/command:/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin
and clears all other environment variables.
Program writers are encouraged to use globally allocated names in
/command.