Could Glaive syntax be changed to match vim's :set?

@glts asked:

> I wonder why you chose to make the notation different from Vim's notation.
>
> ```
> :set list :Glaive plug list
> :set nolist vs :Glaive plug !list
> :set list! vs :Glaive plug ~list
> :set invlist vs :Glaive plug ~list
> :set list? vs TBD
> :set list& vs N/A
> ```
>
> Is there a technical reason for this? I think acceptance would be better if users could apply the same pattern as in standard `:set`.

It's kind of painful to change the syntax if it breaks compatibility, but I think it's a fair question and we should investigate the possibility.