Ticket 47427 - Overflow in nsslapd-disk-monitoring-threshold(Fixed typo in libglobs.c)
    
        Bug Description:  Using ldapsearch shows threshold value as a negative number, even
                          though the feature is working correctly.
    
        Fix Description:  When reading the dse, the server was trying to cast the value as a "int".
                          Changed CONFIG_INT to CONFIG_LONG for nsslapd-disk-monioring-threshold.
    
        https://fedorahosted.org/389/ticket/47427
    
        Reviewed by: richm(Thanks!)