Documentation / diff-heuristic-options.txton commit grep: enable recurse-submodules to work on <tree> objects (74ed437)
   1--indent-heuristic::
   2--no-indent-heuristic::
   3--compaction-heuristic::
   4--no-compaction-heuristic::
   5        These are to help debugging and tuning experimental heuristics
   6        (which are off by default) that shift diff hunk boundaries to
   7        make patches easier to read.