Ticket 49927 - dsctl db2index does not work
    
    Description:  When you don't specify any attributes to index, then all attributes
                  should be reindexed.  This is accomplished by using "ns-slapd upgradedb"
                  but we were not using the correct command line options for this to work.
    
    https://pagure.io/389-ds-base/issue/49927
    
    Reviewed by: spichugi(Thanks!)