lib/time: update to IANA release 2016g (September 2016)

Change-Id: Ie6258602554c5bb6685c9de42ccda84d297af1e2
Reviewed-on: https://go-review.googlesource.com/31515
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

lib/time/update.bash

@@ -8,8 +8,8 @@
 # Consult http://www.iana.org/time-zones for the latest versions.
 
 # Versions to use.
-CODE=2016f
-DATA=2016f
+CODE=2016g
+DATA=2016g
 
 set -e
 rm -rf work