Sort the output with the same default method from git: reverse chronological order. This is the default sorting for new walkers.

Sort the repository contents in topological order (no parents before all of its children are shown); this sorting mode can be combined with time sorting to produce git's `--date-order``.

Sort the repository contents by commit time; this sorting mode can be combined with topological sorting.

Iterate through the repository contents in reverse order; this sorting mode can be combined with any of the above.