rem: DBG("save_contact(): Request not validated, sending 400\n");
add: LOG(L_ERR, "save_contact(): Request not validated, sending 400\n");
context: static int save_contact(struct sip_msg* _msg, char* _table, char* _str2){	location_t* loc;	int star, expires, valid;	if (msg2loc(_msg, &loc, &star, &expires) == FALSE) {		LOG(L_ERR, "save_contact(): Unable to convert SIP message to location_t\n");		return -1;	}	DBG("save_contact(): Validating request\n");	if (validate_location(loc, expires, star, &valid) == FALSE) {		LOG(L_ERR, "save_contact(): Error while validating request\n");		free_location(loc);		return -1;	}	if (!valid) {		DBG("save_contact(): Request not validated, sending 400\n");		free_location(loc);		if (sl_reply(_msg, (char*)400, "Bad Request") == -1) {			LOG(L_ERR, "save_contact(): Error while sending 400 response\n");		}		return -1;	}	DBG("save_contact(): Request validated, processing\n");	if (process_loc(_msg, c, loc, star) == FALSE) {		LOG(L_ERR, "save_contact(): Error while processing location\n");		free_location(loc);		return -1;	}	print_cache(c);	return 1;}