tty.c: Add support for reloading a single TTY

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

src/tty.c

@@ -374,10 +374,20 @@ int tty_respawn(pid_t pid)
 /*
  * Called after reload of /etc/finit.d/, stop/start TTYs
  */
-void tty_reload(void)
+void tty_reload(char *dev)
 {
 	tty_node_t *tty;
 
+	if (dev) {
+		tty = tty_find(dev);
+		if (!tty)
+			logit(LOG_WARNING, "No TTY registered for %s", dev);
+		else
+			tty_action(tty);
+
+		return;
+	}
+
 	tty_sweep();
 
 	LIST_FOREACH(tty, &tty_list, link) {