Wiped out some non-ascii characters that snuck into the copyright.

llvm-svn: 103516
diff --git a/libcxx/include/stack b/libcxx/include/stack
index d5ac100..082f51b 100644
--- a/libcxx/include/stack
+++ b/libcxx/include/stack
@@ -1,7 +1,7 @@
 // -*- C++ -*-
 //===---------------------------- stack -----------------------------------===//
 //
-// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.