[InterNetNews/inn] 958880: scanspool: Detect directories with all-digit name

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: 958880c1b090ea7dae954d62c26b6337f34d23f4
      https://github.com/InterNetNews/inn/commit/958880c1b090ea7dae954d62c26b6337f34d23f4
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2023-12-27 (Wed, 27 Dec 2023)

  Changed paths:
    M doc/pod/news.pod
    M doc/pod/scanspool.pod
    M frontends/scanspool.in

  Log Message:
  -----------
  scanspool: Detect directories with all-digit name

Recognize timehash and timecaf directories, but still do not parse articles.

see #192