$ git diff-tree -c --abbrev master
59d314ad6f356dd08601a4cd5e530381da3e3c64
::100644 100644 100644 cead32e 7289e35 992913c MM dir/sub
::100644 100644 100644 b414108 f4615da 10a8a9f MM file0
$
$ git diff-tree -c --abbrev master
59d314ad6f356dd08601a4cd5e530381da3e3c64
::100644 100644 100644 cead32e 7289e35 992913c MM dir/sub
::100644 100644 100644 b414108 f4615da 10a8a9f MM file0
$