http/transport.go: trivial comment error.
http/transport.go: trivial comment error.

R=golang-dev, bradfitz
CC=golang-dev
http://codereview.appspot.com/6856078

Committer: Shenghou Ma <b563c57947dc20eb81988e3e3c22786764c14ca8@gmail.com>

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang