[mod_gnutls] fix beast workaround (force RC4 on TLS1.0 and SSL3.0)

src/modules/mod_gnutls.c

@@ -412,9 +412,9 @@ static gboolean gnutls_setup(liServer *srv, liPlugin* p, liValue *val, gpointer
 		if (protect_against_beast) {
 			g_string_assign(s, priority);
 			g_string_append_len(s, CONST_STR_LEN(":-CIPHER-ALL:+ARCFOUR-128"));
-			if (GNUTLS_E_SUCCESS != (r = gnutls_priority_init(&prio, priority, &errpos))) {
+			if (GNUTLS_E_SUCCESS != (r = gnutls_priority_init(&prio, s->str, &errpos))) {
 				ERROR(srv, "gnutls_priority_init failed(priority '%s', error at '%s') (%s): %s",
-					priority, errpos,
+					s->str, errpos,
 					gnutls_strerror_name(r), gnutls_strerror(r));
 				goto error_free_ctx;
 			}