
    sga2gff.pl [options] <SGA file>

        where options are:
        -h|--help                Show this stuff
        --db <path>              Use <path> to locate Chrom Id Storable File 'chro_idx.nstorage'
        -l|--taglen <taglen>     Set Read length <taglen>
        -x                       Expand SGA lines into multiple GFF lines
        -e|--ext <ext_flag>      Use SGA 6th field to set GFF feature field
        and store SGA feature into GFF source field

