Copy ICU4C 59 release from icu-project.org to aosp/icu59.

These files were exported from the ICU Subversion repository by running
the following command:

svn export \
  http://source.icu-project.org/repos/icu/tags/release-59-1/icu4c icu4c

Change-Id: I7391eb92454063d3f7e32753b5d513861b146b72
diff --git a/icu4c/source/test/cintltst/cintltst.c b/icu4c/source/test/cintltst/cintltst.c
index 0b4feca..40a0b94 100644
--- a/icu4c/source/test/cintltst/cintltst.c
+++ b/icu4c/source/test/cintltst/cintltst.c
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// © 2016 and later: Unicode, Inc. and others.
 // License & terms of use: http://www.unicode.org/copyright.html
 /********************************************************************
  * COPYRIGHT: