Update to tzdata version 2018i.

https://mm.icann.org/pipermail/tz-announce/2018-December/000054.html
tzinfo · Dec 31, 2018 · 61f5a55 · 61f5a55
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diff --git a/data/NEWS b/data/NEWS
@@ -1,5 +1,17 @@
 News for the tz database
 
+Release 2018i - 2018-12-30 11:05:43 -0800
+
+  Briefly:
+    São Tomé and Príncipe switches from +01 to +00 on 2019-01-01.
+
+  Changes to future timestamps
+
+    Due to a change in government, São Tomé and Príncipe switches back
+    from +01 to +00 on 2019-01-01 at 02:00.  (Thanks to Vadim
+    Nasardinov and Michael Deckers.)
+
+
 Release 2018h - 2018-12-23 17:59:32 -0800
 
   Briefly:

diff --git a/data/SOURCE b/data/SOURCE
@@ -1,2 +1,2 @@
 The files in this directory were obtained from the IANA Time Zone Database
-http://www.iana.org/time-zones, version 2018h.
+http://www.iana.org/time-zones, version 2018i.
diff --git a/data/africa b/data/africa
@@ -1144,10 +1144,20 @@ Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
 # the switch is from 01:00 to 02:00 ... [Decree No. 25/2017]
 # http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
 
+# From Vadim Nasardinov (2018-12-29):
+# São Tomé and Príncipe is about to do the following on Jan 1, 2019:
+# https://www.stp-press.st/2018/12/05/governo-jesus-ja-decidiu-repor-hora-legal-sao-tomense/
+#
+# From Michael Deckers (2018-12-30):
+# https://www.legis-palop.org/download.jsp?idFile=102818
+# ... [The legal time of the country, which coincides with universal
+# coordinated time, will be restituted at 2 o'clock on day 1 of January, 2019.]
+
 Zone	Africa/Sao_Tome	 0:26:56 -	LMT	1884
 			-0:36:45 -	LMT	1912 Jan  1 00:00u # Lisbon MT
 			 0:00	-	GMT	2018 Jan  1 01:00
-			 1:00	-	WAT
+			 1:00	-	WAT	2019 Jan  1 02:00
+			 0:00	-	GMT
 
 # Senegal
 # See Africa/Abidjan.

diff --git a/data/version b/data/version
@@ -1 +1 @@
-2018h
+2018i
diff --git a/lib/tzinfo/data/definitions/Africa/Sao_Tome.rb b/lib/tzinfo/data/definitions/Africa/Sao_Tome.rb
@@ -19,6 +19,7 @@ module Sao_Tome
             tz.transition 1883, 12, :o1, -2713912016, 13009552999, 5400
             tz.transition 1912, 1, :o2, -1830384000, 4838805, 2
             tz.transition 2018, 1, :o3, 1514768400
+            tz.transition 2019, 1, :o2, 1546304400
           end
         end
       end

diff --git a/lib/tzinfo/data/version.rb b/lib/tzinfo/data/version.rb
@@ -1,7 +1,7 @@
 module TZInfo
   module Data
     # TZInfo::Data version number.
-    VERSION = '1.2018.8'
+    VERSION = '1.2018.9'
 
     # TZInfo::Data version information.
     module Version
@@ -14,7 +14,7 @@ module Version
 
       # The version of the {IANA Time Zone Database}[http://www.iana.org/time-zones]
       # used to generate this version of TZInfo::Data.
-      TZDATA = '2018h'
+      TZDATA = '2018i'
     end
   end
 end