Update copyright line to 2015
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index 0c1fc00..32eae42 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -1,7 +1,7 @@
/*
* Certificate reading application
*
- * Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://polarssl.org)
*
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index 78333ab..3897709 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -1,7 +1,7 @@
/*
* Certificate request generation
*
- * Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://polarssl.org)
*
diff --git a/programs/x509/crl_app.c b/programs/x509/crl_app.c
index 7dd3c39..e11b9f1 100644
--- a/programs/x509/crl_app.c
+++ b/programs/x509/crl_app.c
@@ -1,7 +1,7 @@
/*
* CRL reading application
*
- * Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://polarssl.org)
*