ref: ae65ffa1cdffa379eb9a7f248cee5bb017bc4c06
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