Make sure to step state machine when collecting bootstrap tasks

During the runlevel change from S --> 2 the state machine will pause,
waiting to collect all S-only tasks/services, before continuing.

When an S-only task/service is collected we therefore need to call the
state machine again so that it can reassert all conditions properly.

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

src/service.c

@@ -720,7 +720,7 @@ void service_monitor(pid_t lost)
 
 	if (svc_clean_bootstrap(svc)) {
 		_d("collected bootstrap task %s(%d), removing.", svc->cmd, lost);
-		return;
+		goto done;
 	}
 
 	_d("collected %s(%d)", svc->cmd, lost);
@@ -736,6 +736,7 @@ void service_monitor(pid_t lost)
 	svc->pid = 0;
 	service_step(svc);
 
+done:
 	sm_step(&sm);
 }