fix various issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index c9ef8e4..d1e8887 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -5102,7 +5102,6 @@
 #endif
     ssl->session_in = ssl->session_negotiate;
 
-
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
     if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
     {
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 7723363..f141f03 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -3482,13 +3482,14 @@
  *                                 // the structure of mbedtls_ssl_session.
  *
  *    uint8_t minor_ver;           // Protocol minor version. Possible values:
- *                                 // - TLS 1.2 (3)
+ *                                 // - TLS 1.2 (0x0303)
+ *                                 // - TLS 1.3 (0x0304)
  *
  *    select (serialized_session.tls_version) {
  *
  *      case MBEDTLS_SSL_VERSION_TLS1_2:
  *        serialized_session_tls12 data;
- *      case MBEDTLS_SSL_MINOR_VERSION_4:
+ *      case MBEDTLS_SSL_VERSION_TLS1_3:
  *        serialized_session_tls13 data;
  *
  *   };
@@ -4766,7 +4767,6 @@
         mbedtls_free( ssl->transform );
     }
 
-
     if( ssl->handshake )
     {
         mbedtls_ssl_handshake_free( ssl );