ref: 0d8cfa83c83077abdd024decd89cbc3cabcf620f
dir: /sys/src/cmd/hg/hg.proto/
rc - sys sys bin - sys sys hg - sys sys sys - sys sys man - sys sys 1 - sys sys hg - sys sys 8 - sys sys hgignore - sys sys hgrc - sys sys src - sys sys cmd - sys sys hg - sys sys + - sys sys