Update ICU to 58.1

source/data/zone/os.txt

Index: source/data/zone/os.txt
diff --git a/source/data/zone/os.txt b/source/data/zone/os.txt
index b39b356d840908ddf06945c2b82820703f4970aa..3d8f70e4731740b68343a44e2d7ca51bfb758eb7 100644
--- a/source/data/zone/os.txt
+++ b/source/data/zone/os.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/main/os.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 os{
-    Version{"2.1.19.14"}
+    Version{"2.1.27.40"}
     zoneStrings{
         "Asia:Tbilisi"{
             ec{"Тбилис"}