Wrapper for init q and init -t sec 0, used by sysvnit shutdown

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

doc/TODO.md

@@ -17,6 +17,7 @@ Near Future
   to separate process (same as parser?), and possibly even ...
 * ... add new (complimentary) .svc file format to slowly migrate away
   from the very terse one-liner format currently used.
+* Allow running as non-pid1 => read .conf and RCSD form cmdline
 * When a process dies, and Finit does not restart it, we should collect
   a `siginfo_t` from the SIGCHLD signal and supply to the user in case
   `initctl status <process>` is called to debug the issue.