Update ICU to 58.1

source/data/brkitr/en_US_POSIX.txt

Index: source/data/brkitr/en_US_POSIX.txt
diff --git a/source/data/brkitr/en_US_POSIX.txt b/source/data/brkitr/en_US_POSIX.txt
index c080a02a8b1abedd0f1769ff9d8eb3d2a989a6a1..02ac2efdf360c6201064851613c69751c09fa38a 100644
--- a/source/data/brkitr/en_US_POSIX.txt
+++ b/source/data/brkitr/en_US_POSIX.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/en_US_POSIX.xml ../../xml/brkitr/en_US_POSIX.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 en_US_POSIX{
-    Version{"2.1.19.14"}
+    Version{"2.1.29.25"}
     boundaries{
         word:process(dependency){"word_POSIX.brk"}
     }