Warn user when ipa *-find reach limit
    
    Truncated entries were silently ignored, now a user receives warning.
    
    https://fedorahosted.org/freeipa/ticket/4022
    
    Reviewed-By: Petr Spacek <pspacek@redhat.com>
    Reviewed-By: Gabe Alford <redhatrises@gmail.com>