proposal: cmd/go: support darcs vcs

[curiousgay]

Copied from Wikipedia: Darcs is a distributed version control system created by David Roundy. Key features include the ability to choose which changes to accept from other repositories, interaction with either other local (on-disk) repositories or remote repositories via SSH, HTTP, or email, and an unusually interactive interface. The developers also emphasize the use of advanced software tools for verifying correctness: the expressive type system of the functional programming language Haskell enforces some properties, and randomized testing via QuickCheck verifies many others. The name is a recursive acronym for Darcs Advanced Revision Control System.

[ianlancetaylor]

Are there any source code hosting sites that support Darcs?

[curiousgay]

@ianlancetaylor currently I only know of https://hub.darcs.net/