git/t/t4013/diff.noellipses-diff-tree_--root_-r_--abbrev=4_initial

$ git diff-tree --root -r --abbrev=4 initial
444ac553ac7612cc88969031b02b3767fb8a353a
:000000 100644 0000 35d2 A	dir/sub
:000000 100644 0000 01e7 A	file0
:000000 100644 0000 01e7 A	file2
$