Update ICU to 58.1

source/data/region/root.txt

Index: source/data/region/root.txt
diff --git a/source/data/region/root.txt b/source/data/region/root.txt
index c21002215e83562c4a0c8993a11945ef3f5ae1d1..8d4842ff0648ca27b34685443003490d8997f1db 100644
--- a/source/data/region/root.txt
+++ b/source/data/region/root.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/root.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 /**
  * ICU <specials> source: <path>/common/main/root.xml
  */
 root{
-    Version{"2.1.19.19"}
+    Version{"2.1.28.79"}
 }