CFT: sudo 1.8.4b5 update

[Wesley Shields]

I've got a patch to update sudo to the latest 1.8.4 beta (b5) available
at [1]. There's lots of changes in this release and I want to give
people who run more complex sudo installs than I do a chance to test it
out. I'd appreciate people running this update and reporting back with
either success or failure stories, so I feel better about eventually
committing the update once it is out of beta.

[1]: http://people.freebsd.org/~wxs/sudo-beta.diff

-- WXS