sudo: bump to version 1.8.10p3

Also add hashes, kill some whitespace and correct the license type
(ICS->ISC).
Enable $EDITOR to point to the right editor for visudo since it normally
expects /usr/bin/vi which in busybox-world is /bin/vi (and some people
might want to use other editors like the operating system sized one).

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>