[InterNetNews/inn] f8da76: nnrpd: Do not generate Cancel-Key for newgroup con...

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: f8da76ac0a9ae8ab7a6fb056f2dd1dff21b2710c
      https://github.com/InterNetNews/inn/commit/f8da76ac0a9ae8ab7a6fb056f2dd1dff21b2710c
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2022-06-06 (Mon, 06 Jun 2022)

  Changed paths:
    M nnrpd/post.c

  Log Message:
  -----------
  nnrpd: Do not generate Cancel-Key for newgroup control articles

If an article has a Control or a Supersedes header field, a Cancel-Key
header field was generated.  It is not useful for newgroup control articles
or like, so just generate it for *cancel* control articles or supersede
articles.