sudo 1.6.4 beta2 now available

[Todd C. Miller]

There was a missing file in the 1.6.4b2 tarball.  Additionally,
some versions of tar had trouble unpacking the archive.

I've updated the 1.6.4b2 tarball to fix this:
    ftp://ftp.sudo.ws/pub/sudo/beta/sudo-1.6.4b2.tar.gz
    http://www.sudo.ws/sudo/dist/beta/sudo-1.6.4b2.tar.gz

 - todd