git-codereview: add rebase-work command

Shorthand for git rebase -i $(git codereview branchpoint).
Suggested alias: rw = codereview rebase-work.

Change-Id: I4c489064fc6fced8b18cf528b77ae36b9a1c7f06
Reviewed-on: https://go-review.googlesource.com/3622
Reviewed-by: Rob Pike <r@golang.org>
4 files changed
tree: 1c9c4912a9186f9ff3cd0500fe02a2c12402a4bd
  1. .gitattributes
  2. README
  3. git-codereview/