CONTRIBUTORS: fix bradfitz entry
CONTRIBUTORS: fix bradfitz entry

R=rsc
CC=golang-dev
http://codereview.appspot.com/3999041

Committer: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go