Update ICU to 58.1

source/data/zone/om.txt

Index: source/data/zone/om.txt
diff --git a/source/data/zone/om.txt b/source/data/zone/om.txt
index 3a745f1ec4d3a0f57314094c2af0576ff2e201be..31ebaa875af4d27b960e99357d91da00d62659f7 100644
--- a/source/data/zone/om.txt
+++ b/source/data/zone/om.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/om.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 om{
-    Version{"2.1.19.14"}
+    Version{"2.1.27.98"}
     zoneStrings{
         gmtFormat{"GMT{0}"}
         hourFormat{"+HH:mm;-HH:mm"}