t4200: use cut instead of sed

[git/peff.git] / t / t4013 / diff.diff-tree_-c_--abbrev_master

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