Update ICU to 58.1

source/data/brkitr/root.txt

Index: source/data/brkitr/root.txt
diff --git a/source/data/brkitr/root.txt b/source/data/brkitr/root.txt
index 77ddd1405a72f7bf7b43990e16f3bc1ad3b0c6f6..1a1ad8a546f0b2a577034aea8109604fd5b3e12e 100644
--- a/source/data/brkitr/root.txt
+++ b/source/data/brkitr/root.txt
@@ -1,13 +1,7 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/segments/root.xml ../../xml/brkitr/root.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 root{
-    Version{"2.1.20.0"}
+    Version{"2.1.29.25"}
     boundaries{
         grapheme:process(dependency){"char.brk"}
         line:process(dependency){"line_normal.brk"}