Update time zone data files to tzdata release 2018c.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: e5e2cc6f8c1d257991804021d64270e544a81297
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2018-01-27T21:43:00Z
Releases: 9.3.21
Update time zone data files to tzdata release 2018c.

DST law changes in Brazil, Sao Tome and Principe.  Historical corrections
for Bolivia, Japan, and South Sudan.  The "US/Pacific-New" zone has been
removed (it was only a link to America/Los_Angeles anyway).

Files

PathChange+/−
src/timezone/data/tzdata.zi modified +13 −9
src/timezone/known_abbrevs.txt modified +0 −1
src/timezone/tznames/Africa.txt modified +1 −2