if (l < 1 || l > 10) {
WARNING(afbitf, "can't set level to %s: %s", level?:"?", level?"wrong value":"not set");
afb_req_fail(req, "error", "bad request");
if (l < 1 || l > 10) {
WARNING(afbitf, "can't set level to %s: %s", level?:"?", level?"wrong value":"not set");
afb_req_fail(req, "error", "bad request");