Sort the output with the same default time-order method from git. This is the default sorting for new walkers.

Sort the repository contents in topological order (parents before children); this sorting mode can be combined with time sorting to produce git's "time-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.