Change name to mbed TLS in the copyright notice
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index 8f0616c..2ec0738 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 2006-2013, Brainspark B.V.
  *
- *  This file is part of PolarSSL (http://www.polarssl.org)
+ *  This file is part of mbed TLS (http://www.polarssl.org)
  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
  *
  *  All rights reserved.