rem: LOG(L_ERR, "db_close(): Invalid parameter value\n");
add: LOG(L_ERR, "db_close: Invalid parameter value\n");
context: void db_close(db_con_t* _h){	if (!_h) {		LOG(L_ERR, "db_close(): Invalid parameter value\n");		return;	}	release_connection((struct my_con*)_h->tail);	pkg_free(_h);}