Update ICU to 58.1

source/data/translit/Thai_ThaiSemi.txt

Index: source/data/translit/Thai_ThaiSemi.txt
diff --git a/source/data/translit/Thai_ThaiSemi.txt b/source/data/translit/Thai_ThaiSemi.txt
index e0fcff18a7f0a924eb01a1287b4918a4f01acb42..999d0223a7464508cc7da4030e611cc83817acdb 100644
--- a/source/data/translit/Thai_ThaiSemi.txt
+++ b/source/data/translit/Thai_ThaiSemi.txt
@@ -1,11 +1,12 @@
-# ***************************************************************************
-# *
-# *  Copyright (C) 2004-2015, International Business Machines
-# *  Corporation; Unicode, Inc.; and others.  All Rights Reserved.
-# *
-# ***************************************************************************
+# © 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html#License
+#
 # File: Thai_ThaiSemi.txt
-# Generated from CLDR 
+# Generated from CLDR
 #
+
+# The rules that convert space into semicolon are in this file;
+# since they have to come BEFORE the break iterator.
 $thai = [[:thai:] ก-\u0E3Aเ-๛] ;
 $thai { ' ' } $thai → '; ' ;
+