[sudo-users] sudo -l without password

[Edward Capriolo]

I am having an issue where a locally defined users is being asked for
a password they do not have. Any ideas?

sudoUser: user1
sudoOption: !authenticate
sudoCommand: ALL
sudoHost: ALL

User2 is defined in hosts with no password
sudoUser: user2
sudoOption: !authenticate
sudoCommand: /sbin/mysql
sudoHost: ALL

as user1   sudo -l    --works great no password

as user2 sudo -l  --wants a password but user does not have one.

Is there a way to define user2 LDAP permissions so that sudo -l works
without a password?