busybox/sed:
 * add [http://git.busybox.net/busybox/commit/?id=9caea2448e168560de306a1496574dd58c645fea s///NUM-fix] from upstream


git-svn-id: file:///var/svn/freetz/trunk@12455 149334a1-2f27-0410-a3b9-fc62619ac1e6