C+A: added Taj Khattra (individual CLA)

R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/6635061

AUTHORS

diff --git a/AUTHORS b/AUTHORS
index 41f4ac5..9d205cc 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -222,6 +222,7 @@
 Stephen Weinberg <stephen@q5comm.com>
 Sven Almgren <sven@tras.se>
 Szabolcs Nagy <nsz@port70.net>
+Taj Khattra <taj.khattra@gmail.com>
 Tarmigan Casebolt <tarmigan@gmail.com>
 Taru Karttunen <taruti@taruti.net>
 Thomas Alan Copeland <talan.copeland@gmail.com>