t / t4013 / diff.diff-tree_-R_--stat_--compact-summary_initial_modeon commit untracked-cache: be defensive about missing NULs in index (c6909f9)
   1$ git diff-tree -R --stat --compact-summary initial mode
   2 file0 (mode -x) | 0
   3 1 file changed, 0 insertions(+), 0 deletions(-)
   4$