Update ICU to 58.1

source/data/zone/nn.txt

Index: source/data/zone/nn.txt
diff --git a/source/data/zone/nn.txt b/source/data/zone/nn.txt
index aa913185e5fc779a1ec6c66e6fb6cf06473ea07e..6b0f3783b77050bff260a1055cb99e4822659cbb 100644
--- a/source/data/zone/nn.txt
+++ b/source/data/zone/nn.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/nn.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 nn{
-    Version{"2.1.19.14"}
+    Version{"2.1.28.76"}
     zoneStrings{
         "America:Belem"{
             ec{"Belém"}