[InterNetNews/inn] 2d8425: nntpget: Convert documentation to POD

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: 2d8425f45dc915c732a5da9d001a206f99e9e1cc
      https://github.com/InterNetNews/inn/commit/2d8425f45dc915c732a5da9d001a206f99e9e1cc
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2021-12-04 (Sat, 04 Dec 2021)

  Changed paths:
    M MANIFEST
    M backends/nntpget.c
    R doc/man/nntpget.1
    M doc/pod/Makefile
    A doc/pod/nntpget.pod

  Log Message:
  -----------
  nntpget: Convert documentation to POD

Improve documentation at the same time.

Fix Usage() output in nntpget.

Do not add "..." at the end of Message-IDs when -v is used.