Ticket 48797 - Add freebsd support to ns-slapd: main
    
    Fix Description:  This patch adds the final component of support to allow
    operation on freebsd. This includes the disk monitoring code, heimdal kerberos
    changes and correction of an ldbm error code.
    
    https://fedorahosted.org/389/ticket/48797
    
    Author: wibrown
    
    Review by: nhosoi, lslebodn (thanks!)