[klibc] ipconfig: non zero exit on timeout

I was scripting in klibc and wanted to make an action when the dhcp client
failed at grabing an IP after the defined timeout.
I found that klibc always exit 0 which isn't that convenient .

Belows patch fixes the issue.

[ small coding style changes - maks]
Signed-off-by: maximilian attems <max@stro.at>
1 file changed