halStats output is difficult to use

[diekhans]

many halStats options (e.g. --genomes, --sequences) output a single line of comma separate results. This doesn't work easily with Unix tools or any common library.

--sequenceStats attempts to create a CVS, however, it pads values with spaces, which is not valid.

It would be far better if halStats produced TSV and tab files, or optionally both