§ 125. Notice to creditors. At least fourteen days before the petition is presented, the petitioner must serve, upon the creditor in each execution, by virtue of which he is imprisoned, a copy of the petition, and of the schedule; together with a written notice of the time when, and place where, they will be presented. If, by reason of changes occurring after the service, it is necessary, before presenting the petition and schedule, to correct any statement contained in the schedule, the correction may be made by a supplemental schedule, a copy of which need not be served, unless the court so directs.