Walmart has tweaked its holiday meal deal, reducing the number of people the package of foods is intended to serve while raising the number of items it includes. The retailer originally said the meal promotion, which it announced Sept. 19, included enough food to serve as many as 10 people for less than $7 per person. But on Thursday, Walmart issued a new press release about the package that says it is intended to serve eight people and also modified its earlier announcement to reflect that change.