Update ICU to 58.1

source/samples/layout/GnomeGUISupport.cpp

Index: source/samples/layout/GnomeGUISupport.cpp
diff --git a/source/samples/layout/GnomeGUISupport.cpp b/source/samples/layout/GnomeGUISupport.cpp
index 2835b616a01f4a62ea8361f018219d54489a7243..05c6b1a6ccb425d1cd16604d8ee26b80bd1b2916 100644
--- a/source/samples/layout/GnomeGUISupport.cpp
+++ b/source/samples/layout/GnomeGUISupport.cpp
@@ -1,6 +1,12 @@
 /*
  *******************************************************************************
  *
+ *   Copyright (C) 2016 and later: Unicode, Inc. and others.
+ *   License & terms of use: http://www.unicode.org/copyright.html#License
+ *
+ *******************************************************************************
+ *******************************************************************************
+ *
  *   Copyright (C) 1999-2001, International Business Machines
  *   Corporation and others.  All Rights Reserved.
  *