tls_valid_group: Add missing dereference of okfortls13
Fixes
@@ -526,7 +526,7 @@ int tls_valid_group(SSL *s, uint16_t group_id, int minversion, int maxversion,
int ret;
if (okfortls13 != NULL)
- okfortls13 = 0;
+ *okfortls13 = 0;
if (ginfo == NULL)
return 0;
