Update ICU to 58.1

source/data/zone/is.txt

Index: source/data/zone/is.txt
diff --git a/source/data/zone/is.txt b/source/data/zone/is.txt
index 7b016761babf472fc19d7760c71650dec3ecbb92..7b14d84329f59f5c07c77157b6fc0400fedd2b1b 100644
--- a/source/data/zone/is.txt
+++ b/source/data/zone/is.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/is.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 is{
-    Version{"2.1.19.17"}
+    Version{"2.1.29.65"}
     zoneStrings{
         "Africa:Abidjan"{
             ec{"Abidjan"}