Update ICU to 58.1

source/data/zone/mgo.txt

Index: source/data/zone/mgo.txt
diff --git a/source/data/zone/mgo.txt b/source/data/zone/mgo.txt
old mode 100755
new mode 100644
index a96b3e4f88dc3b433567f9345c60a02f871c6212..673dd6f184408254ef54863aacac226085276d5b
--- a/source/data/zone/mgo.txt
+++ b/source/data/zone/mgo.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/mgo.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 mgo{
-    Version{"2.1.19.14"}
+    Version{"2.1.27.40"}
     zoneStrings{
         fallbackFormat{"{1} ({0})"}
         gmtFormat{"GMT{0}"}