bug#41727: 26.3; Doc of `define-minor-mode' and minor-mode commands

[Drew Adams]

> > My point was that you take the text out of its context, and that
> > context spells out what you say is missing.
> 
> Just to be sure: you both speak about the sign of the ARG (current text)
> vs. the sign of (prefix-numeric-value ARG) (as Drew wants)?  AFAIU Drew
> wants to mention that even in the noninteractive case
> `prefix-numeric-value' is called on the ARG before testing it.

Yes, it's the raw prefix arg (or equivalent) that's
used, in all cases.  And that's not necessarily an
integer.  And `prefix-numeric-value' is applied to
that, to get the effective arg that's used.