buildroot

whois: new package

[Peter: tweak comment, pass _MAKE_OPT to install as suggested by Arnout]
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>