cdBG output format description

[dkoslicki]

After running,

the first few lines are:

------------------------------------------------------------------------------------------------
---------------         columns: unitig id, next unitig ids, unitig content     ----------------
------------------------------------------------------------------------------------------------
1  644039  708271    AAAATTTTTTTTTTTTTTTT
2  1  51647    AAAAATTTTTTTTTTTTTTT
3  52749  53385    ATTAAAAAAATTTTTGTTTT
4  2  51649    AAAAAATTTTTTTTTTTTTT
5  629647  697882    TAATCACGACCCGTTTTATTTT

Two issues with this:

1. It will be difficult to parse if the output file has an unconventionally formatted header. Consider describing the output format elsewhere and just print the columns. Also, be sure to choose a standard output format like TSV, CSV, or something else easily imported into python, R, and/or worked with on the Linux command line.
2. There are 4 columns listed, but the header only describes three. Eg. what is the 708271 in the first content row?