misc/dist: Specify a version for the darwin package.

R=golang-dev, adg
CC=golang-dev
https://codereview.appspot.com/13383045

Committer: Andrew Gerrand <adg@golang.org>
compress/flate: small documentation fix

R=golang-dev, adg
CC=bradfitz, golang-dev, remyoudompheng
https://codereview.appspot.com/13568045

Committer: Andrew Gerrand <adg@golang.org>