openvpn/lighttpd:
 * do not select FREETZ_BUSYBOX_CHROOT, chroot-command is not the same as chroot-function ("man 8 chroot" vs "man 2 chroot")
 * refs r9859, refs #1786


git-svn-id: file:///var/svn/freetz/trunk@9908 149334a1-2f27-0410-a3b9-fc62619ac1e6