Update ICU to 58.1

source/data/zone/mzn.txt

Index: source/data/zone/mzn.txt
diff --git a/source/data/zone/mzn.txt b/source/data/zone/mzn.txt
old mode 100755
new mode 100644
index 5a9ebe7bb90ab5db7d595121ba5af0911f5db30f..587af24026e389ce96aa6b8df9ef27bcd9b7c9d5
--- a/source/data/zone/mzn.txt
+++ b/source/data/zone/mzn.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/mzn.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 mzn{
-    Version{"2.1.19.14"}
+    Version{"2.1.28.76"}
     zoneStrings{
         fallbackFormat{"{1} ({0})"}
         gmtFormat{"GMT{0}"}