gtls: print negotiated TLS version and full cipher suite name

Instead of priting cipher and MAC algorithms names separately, print the
whole cipher suite string which also includes the key exchange algorithm,
along with the negotiated TLS version.

lib/vtls/gtls.c

@@ -797,6 +797,16 @@ gtls_connect_step3(struct connectdata *conn,
 #endif
   CURLcode result = CURLE_OK;
 
+  gnutls_protocol_t version = gnutls_protocol_get_version(session);
+
+  /* the name of the cipher suite used, e.g. ECDHE_RSA_AES_256_GCM_SHA384. */
+  ptr = gnutls_cipher_suite_get_name(gnutls_kx_get(session),
+                                     gnutls_cipher_get(session),
+                                     gnutls_mac_get(session));
+
+  infof(data, "SSL connection using %s / %s\n",
+        gnutls_protocol_get_name(version), ptr);
+
   /* This function will return the peer's raw certificate (chain) as sent by
      the peer. These certificates are in raw format (DER encoded for
      X.509). In case of a X.509 then a certificate list may be present. The
@@ -1036,7 +1046,6 @@ gtls_connect_step3(struct connectdata *conn,
 
   /* Show:
 
-  - ciphers used
   - subject
   - start date
   - expire date
@@ -1076,14 +1085,6 @@ gtls_connect_step3(struct connectdata *conn,
   /* the *_get_name() says "NULL" if GNUTLS_COMP_NULL is returned */
   infof(data, "\t compression: %s\n", ptr);
 
-  /* the name of the cipher used. ie 3DES. */
-  ptr = gnutls_cipher_get_name(gnutls_cipher_get(session));
-  infof(data, "\t cipher: %s\n", ptr);
-
-  /* the MAC algorithms name. ie SHA1 */
-  ptr = gnutls_mac_get_name(gnutls_mac_get(session));
-  infof(data, "\t MAC: %s\n", ptr);
-
 #ifdef HAS_ALPN
   if(data->set.ssl_enable_alpn) {
     rc = gnutls_alpn_get_selected_protocol(session, &proto);