What problem does this feature solve?

There's already a nice shorthand for true props where you just add the prop name on its own, however there isn't an equivilent shorthand for false props. Below are a couple suggestions for that shorthand that would make writing/reading these props easier I think. It's a pretty minor feature request, but I think it would add to the already amazing developer experience of using Vue.

What does the proposed API look like?

<component !prevent /> translates to <component :prevent="false" />

<component :not-prevent /> translates to <component :prevent="false" />