Upgrade to tzdata2012e.

Includes this change:

  * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14.
    (Thanks to Steffen Thorsen.)

Change-Id: I51bfab759f424b90daeb1960c6cfb2b55b78ff46
diff --git a/libc/zoneinfo/zoneinfo.version b/libc/zoneinfo/zoneinfo.version
index e606761..f9e9d44 100644
--- a/libc/zoneinfo/zoneinfo.version
+++ b/libc/zoneinfo/zoneinfo.version
@@ -1 +1 @@
-2012d
+2012e