Update ICU to 58.1

source/data/zone/es_GT.txt

Index: source/data/zone/es_GT.txt
diff --git a/source/data/zone/es_GT.txt b/source/data/zone/es_GT.txt
old mode 100755
new mode 100644
index 62b29e9af0dcde75e1aa76269d59bbfaff13e13f..10e20107474152f3e13e228a98898dc0c1fae074
--- a/source/data/zone/es_GT.txt
+++ b/source/data/zone/es_GT.txt
@@ -1,12 +1,6 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/main/es_GT.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 es_GT{
     %%Parent{"es_419"}
-    Version{"2.1.20.32"}
+    Version{"2.1.27.99"}
 }