t / t4013 / diff.diff-tree_--cc_--stat_--summary_sideon commit builtin-am: check for valid committer ident (5e4f9cf)
   1$ git diff-tree --cc --stat --summary side
   2c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
   3 dir/sub | 2 ++
   4 file0   | 3 +++
   5 file3   | 4 ++++
   6 3 files changed, 9 insertions(+)
   7 create mode 100644 file3
   8$