Update TLS1.3 draft version numbers for latest draft

Reviewed-by: NRich Salz <rsalz@openssl.org>

include/openssl/tls1.h

@@ -68,8 +68,8 @@ extern "C" {
 # define TLS1_3_VERSION                  0x0304
 # define TLS_MAX_VERSION                 TLS1_3_VERSION
 
-/* TODO(TLS1.3) REMOVE ME: Version indicator for draft -17 */
-# define TLS1_3_VERSION_DRAFT            0x7f11
+/* TODO(TLS1.3) REMOVE ME: Version indicator for draft -18 */
+# define TLS1_3_VERSION_DRAFT            0x7f12
 
 /* Special value for method supporting multiple versions */
 # define TLS_ANY_VERSION                 0x10000

ssl/t1_trce.c

@@ -571,7 +571,7 @@ static ssl_trace_tbl ssl_supp_versions_tbl[] = {
     {TLS1_1_VERSION, "TLSv1.1"},
     {TLS1_2_VERSION, "TLSv1.2"},
     {TLS1_3_VERSION, "TLSv1.3"},
-    {TLS1_3_VERSION_DRAFT, "TLSv1.3 draft 17"}
+    {TLS1_3_VERSION_DRAFT, "TLSv1.3 draft 18"}
 };
 
 static void ssl_print_hex(BIO *bio, int indent, const char *name,