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

From: Drew Adams <[email-masked]>
Date: Mon, 14 Oct 2019 02:22:42 +0000 (UTC)

> -p is used in function names.
> For a variable, it is better to end in -flag.

`-flag' has been used only, AFAIK, for user options.

---

What I use, FWIW:

* `-flag' for user options.  (I'm about the only
one who does this anymore, it seems.)

* `-p' for non-option variables whose values
  are used just as Booleans (`nil', non-`nil').

* No suffix for non-option variables whose values
  are used other than just as Booleans (`nil',
  non-`nil').