Update ICU to 58.1

source/samples/layout/GnomeFontInstance.h

Index: source/samples/layout/GnomeFontInstance.h
diff --git a/source/samples/layout/GnomeFontInstance.h b/source/samples/layout/GnomeFontInstance.h
index 4af393804cda0e592c11882cbd6c7a6ead0092c8..f088b6418ef9bf390e0a8d45610d3f3cb731be2e 100644
--- a/source/samples/layout/GnomeFontInstance.h
+++ b/source/samples/layout/GnomeFontInstance.h
@@ -2,6 +2,12 @@
 /*
  *******************************************************************************
  *
+ *   Copyright (C) 2016 and later: Unicode, Inc. and others.
+ *   License & terms of use: http://www.unicode.org/copyright.html#License
+ *
+ *******************************************************************************
+ *******************************************************************************
+ *
  *   Copyright (C) 1999-2006, International Business Machines
  *   Corporation and others.  All Rights Reserved.
  *