Update Changelog for fixes to X.509 sample apps
diff --git a/ChangeLog b/ChangeLog
index 01fa477..865ea61 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -17,9 +17,9 @@
by inestlerode. #559.
* Fixed default threading implementation to avoid accidental double
initialisations and double frees.
- * Fixed sample application 'programs/pkey/gen_key.c' for builds where the
- configuration MBEDTLS_PEM_WRITE_C is not defined. Found by inestlerode.
- #559.
+ * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
+ builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
+ by inestlerode. #559.
= mbed TLS 2.1.5 branch released 2016-06-28