Comment 7 for bug 1228304

Equivalent of following would be required for PXB sst:

    if ! [ -z $WSREP_SST_OPT_BINLOG ]
    then

        pushd $BINLOG_DIRNAME &> /dev/null
        if [ -f $BINLOG_TAR_FILE ]
        then
            # Clean up old binlog files first
            rm -f ${BINLOG_FILENAME}.*
            wsrep_log_info "Extracting binlog files:"
            tar -xvf $BINLOG_TAR_FILE >&2
            for ii in $(ls -1 ${BINLOG_FILENAME}.*)
            do
                echo ${BINLOG_DIRNAME}/${ii} >> ${BINLOG_FILENAME}.index
            done
        fi
        popd &> /dev/null
    fi