ConnectionValidator calls userInfo and rolesInfo, but uses an integer instead of a Boolean for the showPrivileges and showBuiltinRoles arguments, per the MongoDB documentation: 
https://docs.mongodb.com/manual/reference/command/usersInfo/
https://docs.mongodb.com/manual/reference/command/rolesInfo/

We should convert that to use Booleans.

A pull request can be found here: https://github.com/mongodb/mongo-kafka/pull/55