add Anh Hai Trinh to C&A

R=rsc, adg
CC=golang-dev
https://golang.org/cl/218076
diff --git a/AUTHORS b/AUTHORS
index 0b9179d..281eb08 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -15,6 +15,7 @@
 Andrew Skiba <skibaa@gmail.com>
 Andrey Mirtchovski <mirtchovski@gmail.com>
 Andy Davis <andy@bigandian.com>
+Anh Hai Trinh <anh.hai.trinh@gmail.com>
 Anthony Starks <ajstarks@gmail.com>
 Aron Nopanen <aron.nopanen@gmail.com>
 Arvindh Rajesh Tamilmani <art@a-30.net>