Add support for starting/stopping SysV init scripts

This patch adds initial support for starting a SysV init script in a
runlevel, and stopping it when leaving a runlevel.

    sysv [LVLS] <COND> /path/to/script.sh -- Optional Description

The SysV /etc/inittab file, which may use /etc/init.d, or /etc/rcN.d,
is still not supported.  A separate plugin would be required for this,
see the documentation for more information.

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

src/conf.c

@@ -464,6 +464,12 @@ static void parse_dynamic(char *line, struct rlimit rlimit[], char *file)
 		return;
 	}
 
+	/* Similar to task but is treated like a SysV init script */
+	if (MATCH_CMD(line, "sysv ", x)) {
+		service_register(SVC_TYPE_SYSV, x, rlimit, file);
+		return;
+	}
+
 	/* Classic inetd service */
 	if (MATCH_CMD(line, "inetd ", x)) {
 #ifdef INETD_ENABLED