bug#26564: Document that only functions and not variables can end with "-p"

[Michael Heerdegen]

Kaushal Modi <kaushal.modi@gmail.com> writes:

> -Examples are @code{framep} and @code{frame-live-p}.
> +Examples are @code{framep} and @code{frame-live-p}.  This predicate
> +suffix should not be used in variable names (i.e., you might name a
> +variable @code{foo-feature} instead of @code{foo-feature-p}).

I think we should not discourage naming variables bound to a predicate
"-p".  I guess you only mean "boolean variables" here?


Michael.