fix comment issue

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index 40eb57e..fc3ecc8 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -2562,8 +2562,8 @@
          * as it may change when using the CID extension. */
         int minor_ver = ssl->minor_ver;
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
-        /* TLS 1.3 still uses the TLS 1.3 version identifier
-        * for backwards compatibility. */
+        /* TLS 1.3 still uses the TLS 1.2 version identifier
+         * for backwards compatibility. */
         if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_4 )
             minor_ver = MBEDTLS_SSL_MINOR_VERSION_3;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */