(a) In this article, "merchant" has the meaning assigned by Section 31.01, Penal Code.
(b) Notwithstanding Article 21.09, an indictment or information in the prosecution of an offense under Section 31.16, Penal Code, shall not be held insufficient for failure to name or describe each item of property stolen. It shall be sufficient to name the merchant and, if the offense level is based on a value of the property stolen, the aggregate value range of the stolen property applicable to the offense being alleged.