doc/go1.8: update timezone database version

Fixes #18623.

Change-Id: Ic965f5f7088c3270adbca7162226be486d1b9b4e
Reviewed-on: https://go-review.googlesource.com/35130Reviewed-by: Ian Lance Taylor <iant@golang.org>

doc/go1.8.html

@@ -1617,9 +1617,9 @@ crypto/x509: return error for missing SerialNumber (CL 27238)
       June 31 and July 32.
     </p>
 
-    <p> <!-- CL 33029 -->
+    <p> <!-- CL 33029 --> <!-- CL 34816 -->
       The <code>tzdata</code> database has been updated to version
-      2016i for systems that don't already have a local time zone
+      2016j for systems that don't already have a local time zone
       database.
     </p>