SECTION 1. The charter of the town of Greenfield, which is on file in the office of the archivist of the commonwealth, as provided in section 12 of chapter 43B of the General Laws, is hereby amended by striking out subsection               (b) of section 7-8 and inserting in place thereof the following:-

(b) Certain Initiative Provisions to Apply - The petition described in this section shall be termed a "referendum petition" and insofar as applicable section 7-7(a) describing the manner in which a petition is prepared and filed, 7-7(b) providing for both referral to the Town Attorney for a legal opinion, 7-7(f) providing for publication of the text of the measure and 7-7(g) providing for the form of ballot question, shall apply to such referendum petitions, except that the words "measure or part thereof protested against" shall be deemed to replace the word "measure" in said sections wherever it may occur and the word "referendum" shall be deemed to replace the word "initiative" wherever it may occur in said sections