Ticket 49377 - Incoming BER too large with TLS on plain port
    
    Bug Description:  When doing TLS to a plain port, a message of
    "ber element 3 bytes too large for max ber" when max ber > 3.
    
    Fix Description:  When ber_len < maxber, report that the request
    may be misformed instead of "oversize" instead. This can lead
    to a better diagnosis.
    
    https://pagure.io/389-ds-base/issue/49377
    
    Author: wibrown
    
    Review by: mreynolds (thanks!)