Update ICU to 58.1

source/samples/date/date.c

Index: source/samples/date/date.c
diff --git a/source/samples/date/date.c b/source/samples/date/date.c
index ce84f2c60731c11803f814ec698d4070ed5e10e9..f7a3a817577a90ff7f87cfcefa1c5d96c0e39caa 100644
--- a/source/samples/date/date.c
+++ b/source/samples/date/date.c
@@ -1,5 +1,9 @@
 /*
-**********************************************************************
+*************************************************************************
+*   Copyright (C) 2016 and later: Unicode, Inc. and others.
+*   License & terms of use: http://www.unicode.org/copyright.html#License
+*************************************************************************
+***********************************************************************
 *   Copyright (C) 1998-2012, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 **********************************************************************