t / t4013 / diff.diff_--no-index_--raw_--no-abbrev_dir2_diron commit rev-parse: add '--absolute-git-dir' option (a2f5a87)
   1$ git diff --no-index --raw --no-abbrev dir2 dir
   2:000000 100644 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 A      dir/sub
   3$