Update ICU to 58.1

source/data/unit/gsw.txt

Index: source/data/unit/gsw.txt
diff --git a/source/data/unit/gsw.txt b/source/data/unit/gsw.txt
old mode 100755
new mode 100644
index c47793e453b8c0955198c84f8bdb558ae9195ea9..ba8abccaac152086e17f6369cee94d59ad3903d5
--- a/source/data/unit/gsw.txt
+++ b/source/data/unit/gsw.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/gsw.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 gsw{
-    Version{"2.1.19.74"}
+    Version{"2.1.28.76"}
     durationUnits{
         hm{"h:mm"}
         hms{"h:mm:ss"}