Specific wording is not mandated.
"the notice shall be posted at all entrances to the premises that are primarily used by persons entering the property. The notice shall be in English but a notice may also be posted in any language used by patrons, customers or persons who frequent the place where weapon possession is prohibited. In addition to the sign, notice may also include the international circle and slash symbolizing the prohibition of the item within the circle. The sign shall be of a size that is plainly visible to the average person entering the building, premises or property and shall contain language substantially similar to the following:
Pursuant to § 39171359 , the owner/operator of this property has banned weapons on this property, or within this building or this portion of this building. Failure to comply with this prohibition is punishable as a criminal act under state law and may subject the violator to a fine of not more than five dollars ($500).
I don't drink or support liquor store sales, so I have no reason to research the statues specifically referencing them and the regulating authorities. Maybe someone else can shed more light.