[git commit master] udhcp: merge options.h into common.h, script.c into dhcpc.c

[Denys Vlasenko]

commit: http://git.busybox.net/busybox/commit/?id=dde8bdcc5bd6f25157ca5364b2991c837f1ef364
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>

Patch is too large, so refusing to show it