Jacob Keller [off-list ref] writes:
quoted
{ OPTION_LOWLEVEL_CALLBACK, 0, "compaction-heuristic", NULL, NULL, N_("Use an experimental blank-line-based heuristic to improve diffs"), PARSE_OPT_NOARG, parse_opt_unknown_cb },
The unchanged context line should have its description re-worded to
something like "Use an experimental heuristic to improve diffs" as it
no longer uses only blank lines.
Thanks. The final copy I pushed out has that change.