rem: DBG("DEBUG: branch label created now: %*s (%d)\n", p_msg->add_to_branch_len,
add: DBG("DEBUG: XXX branch label created now: %*s (%d)\n", p_msg->add_to_branch_len,
context: int add_branch_label( struct cell *trans, struct sip_msg *p_msg, int branch ){	char *c;	short n;	n=snprintf( p_msg->add_to_branch_s+p_msg->add_to_branch_len,		  MAX_BRANCH_PARAM_LEN - p_msg->add_to_branch_len,		 ".%x.%x.%x",		 trans->hash_index, trans->label, branch );	if (n==-1) {		LOG(L_ERR, "ERROR: add_branch_label: too small branch buffer\n");		return -1;	} else {		p_msg->add_to_branch_len += n;		DBG("DEBUG: branch label created now: %*s (%d)\n", p_msg->add_to_branch_len, 			p_msg->add_to_branch_s );		return 0;	}}