(a) In commencing a civil action by or against a partnership, it shall not be necessary to insert the names of the partners in the process, provided the partnership name is stated. The plaintiff shall have the right, within the first three days of the court after the return day, to amend the process without costs by inserting the names of the partners.
(b) An attachment, in any civil action against a partnership, of the private property of any of its members shall not be valid unless the name of the member is set forth in the process at the time of the attachment.