Installation of default.script for udhcpc
Installation of default.script for udhcpc

The busybox template installs default.script in /usr/share/udhcpc/.
But the pathname of "default.script" may vary from one busybox
build to another. As the pathname is displayed in udhcpc's help,
grab it from it.

Signed-off-by: Rachid Koucha <55b470430ab0f78cdba904b886a7b6e0a92ea649@gmail.com>
hallyn/lxc,ss1h2a3tw/lxc,ss1h2a3tw/lxc,hallyn/lxc,ss1h2a3tw/lxc,hallyn/lxc