Update date in copyright line
diff --git a/library/x509write_csr.c b/library/x509write_csr.c
index 4095ba1..4e8c2c5 100644
--- a/library/x509write_csr.c
+++ b/library/x509write_csr.c
@@ -1,7 +1,7 @@
 /*
  *  X.509 Certificate Signing Request writing
  *
- *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  *
  *  This file is part of mbed TLS (https://tls.mbed.org)
  *