040000 tree 3bd5f9dc071488a2f5c55cf512dd57265df34928	btree
040000 tree a54bc92a258207fd3aad21652ce35c51923db383	go-cmp
040000 tree e394c6eb536816292b7f6c4c29f60cfbb1daaaf5	shlex
040000 tree e84349031318953ea48279a5ee0c9a359295b8fd	subcommands