The docket entries and decrees spread upon the minutes of the court shall not refer to names of the natural parent or parents nor to the original name of the child. In the decree reference to the child shall be by the name to be conferred upon it by the court rather than by its original name if the name of the child is to be changed. The style of the cause and the docket entry thereof shall recite only the names of the petitioners and that the case is for the adoption of a child described in the petition.