[InterNetNews/inn] fd1b91: Add shfmt reformatting rule in "make reformat"

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: fd1b9137e2e7c17799e9fa4dbb6d2d8f705bce41
      https://github.com/InterNetNews/inn/commit/fd1b9137e2e7c17799e9fa4dbb6d2d8f705bce41
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2022-02-07 (Mon, 07 Feb 2022)

  Changed paths:
    M .git-blame-ignore-revs
    M Makefile
    M doc/pod/hacking.pod

  Log Message:
  -----------
  Add shfmt reformatting rule in "make reformat"