Update ICU to 58.1

source/data/zone/br.txt

Index: source/data/zone/br.txt
diff --git a/source/data/zone/br.txt b/source/data/zone/br.txt
old mode 100755
new mode 100644
index 70591a316212a2132aa0078425bf54962132d1b5..56df5a7846810fd3083eab71d96427cec8e0b3fd
--- a/source/data/zone/br.txt
+++ b/source/data/zone/br.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/br.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 br{
-    Version{"2.1.19.94"}
+    Version{"2.1.28.76"}
     zoneStrings{
         "Africa:Abidjan"{
             ec{"Abidjan"}
@@ -1295,7 +1289,7 @@ br{
         }
         fallbackFormat{"{1} ({0})"}
         gmtFormat{"GMT{0}"}
-        gmtZeroFormat{"UTC"}
+        gmtZeroFormat{"GMT"}
         hourFormat{"+HH:mm;-HH:mm"}
         regionFormat{"eur {0}"}
         regionFormatDaylight{"eur hañv {0}"}