[patch] shrink arping a bit

[Bernhard Fischer]

On Thu, Mar 30, 2006 at 06:57:08PM +0200, Bernhard Fischer wrote:
>Hi,
>
>   text    data     bss     dec     hex filename
>   3627       4     120    3751     ea7 networking/arping.o.oorig
>   3592       4     120    3716     e84 networking/arping.o
>
>The attached patchlet doesn't use bb_getopt_ulflags yet and i don't plan
>to convert it during the next couple of days, so if anyone wants to
>help..
>
>Apparently we have yet another arping() impl in udhcpd which could be
>dropped unless udhcp is built in standalone-mode
>
>It's irritating that our arping wants the interface specified as capital
>'I' while the big version which ships with my desktop uses a lowercase
>'i'. I'd like to change ours to lowercase too.
>
>Objections or comments?

hmz. I'll of course mv setting the default retval _after_ the last
bb_show_usage..