Update ICU to 58.1

source/data/translit/Fullwidth_Halfwidth.txt

Index: source/data/translit/Fullwidth_Halfwidth.txt
diff --git a/source/data/translit/Fullwidth_Halfwidth.txt b/source/data/translit/Fullwidth_Halfwidth.txt
index cb0f929cc9c1f8f4ffbf60039452f2f75d86caf8..66ed739883e0c99d4468131cbeafedba10500437 100644
--- a/source/data/translit/Fullwidth_Halfwidth.txt
+++ b/source/data/translit/Fullwidth_Halfwidth.txt
@@ -1,12 +1,15 @@
-# ***************************************************************************
-# *
-# *  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: Fullwidth_Halfwidth.txt
-# Generated from CLDR 
+# Generated from CLDR
 #
+
+# Fullwidth-Halfwidth
+# Mechanically generated from Unicode Character Database
+# IDEOGRAPHIC SPACE then added, and
+# FULLWIDTH MACRON changed to map to MACRON, not SPACE + COMBINING MACRON
+# multicharacter
 ガ↔ｶﾞ; # to KATAKANA LETTER GA
 ギ↔ｷﾞ; # to KATAKANA LETTER GI
 グ↔ｸﾞ; # to KATAKANA LETTER GU
@@ -35,6 +38,7 @@
 ヴ↔ｳﾞ; # to KATAKANA LETTER VU
 ヷ↔ﾜﾞ; # to KATAKANA LETTER VA
 ヺ↔ｦﾞ; # to KATAKANA LETTER VO
+# single character
 ！↔'!'; # from FULLWIDTH EXCLAMATION MARK
 ＂↔'"'; # from FULLWIDTH QUOTATION MARK
 ＃↔'#'; # from FULLWIDTH NUMBER SIGN
@@ -259,3 +263,5 @@
 ↓↔￬; # to HALFWIDTH DOWNWARDS ARROW
 ■↔￭; # to HALFWIDTH BLACK SQUARE
 ○↔￮; # to HALFWIDTH WHITE CIRCLE
+# eof
+