Update ICU to 58.1

source/data/zone/en_BW.txt

Index: source/data/zone/en_BW.txt
diff --git a/source/data/zone/en_BW.txt b/source/data/zone/en_BW.txt
old mode 100755
new mode 100644
index 0800ff5866897ed3836aae26dc4c8d154426534a..172a690d537649e6c9b1e6990716b71b53453caa
--- a/source/data/zone/en_BW.txt
+++ b/source/data/zone/en_BW.txt
@@ -1,14 +1,8 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/main/en_BW.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 en_BW{
     %%Parent{"en_001"}
-    Version{"2.1.19.14"}
+    Version{"2.1.27.65"}
     zoneStrings{
         "meta:Africa_Central"{
             ss{"CAT"}