review: push argument handling into subcommands

Will enable flags for subcommands.
Improves error checking already.

Change-Id: I19219fd4d05b605c89fe0d2b1241aafbb6f72dbe
1 file changed
tree: 0868eee56e5df71c7986ae5a6544657d0bf4fbf7
  1. README
  2. api.go
  3. hook.go
  4. review.go