Replaced copyright symbols with (c) to match trunk

[SVN r48842]

enable_if/test/lazy.cpp

@@ -1,6 +1,6 @@
 // Boost enable_if library
 
-// Copyright 2003 © The Trustees of Indiana University.
+// Copyright 2003 (c) The Trustees of Indiana University.
 
 // Use, modification, and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at