A+C: add a missing name

Per email from acoshift.

Change-Id: Ieb79244d17623e112a385e6b43843d3ffb185cf6
Reviewed-on: https://go-review.googlesource.com/45995Reviewed-by: Matt Layher <mdlayher@gmail.com>

AUTHORS

@@ -16,7 +16,6 @@ Aaron France <aaron.l.france@gmail.com>
 Aaron Torres <tcboox@gmail.com>
 Abe Haskins <abeisgreat@abeisgreat.com>
 Abhinav Gupta <abhinav.g90@gmail.com>
-acoshift <acoshift@gmail.com>
 Adam Eijdenberg <adam@continusec.com>
 Adrian Nos <nos.adrian@gmail.com>
 Adrian O'Grady <elpollouk@gmail.com>
@@ -931,6 +930,7 @@ Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
 Teleport Inc.
 Terrel Shumway <gopher@shumway.us>
 Tetsuo Kiso <tetsuokiso9@gmail.com>
+Thanatat Tamtan <acoshift@gmail.com>
 Thiago Fransosi Farina <thiago.farina@gmail.com>
 Thomas Alan Copeland <talan.copeland@gmail.com>
 Thomas Bonfort <thomas.bonfort@gmail.com>

CONTRIBUTORS

@@ -40,7 +40,6 @@ Aaron Torres <tcboox@gmail.com>
 Aaron Zinman <aaron@azinman.com>
 Abe Haskins <abeisgreat@abeisgreat.com>
 Abhinav Gupta <abhinav.g90@gmail.com>
-acoshift <acoshift@gmail.com>
 Adam Bender <abender@google.com>
 Adam Eijdenberg <adam@continusec.com>
 Adam Langley <agl@golang.org>
@@ -1234,6 +1233,7 @@ Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
 Terrel Shumway <gopher@shumway.us>
 Tetsuo Kiso <tetsuokiso9@gmail.com>
 Than McIntosh <thanm@google.com>
+Thanatat Tamtan <acoshift@gmail.com>
 Thiago Fransosi Farina <thiago.farina@gmail.com> <tfarina@chromium.org>
 Thomas Alan Copeland <talan.copeland@gmail.com>
 Thomas Bonfort <thomas.bonfort@gmail.com>