[sudo-users] Add sudo to ESXi 5.1

[Todd C. Miller]

You might try the CentOS 4 binaries from http://www.sudo.ws/download.html
Cross-compiling should not be too difficult if you need to go that
route.  It seems that ESXi 5.1 allows you to give administrator
rights to user accounts so they don't see the need to have sudo.

http://blogs.vmware.com/vsphere/2012/09/vsphere-5-1-full-admin-support-for-named-user-accounts.html

 - todd