[InterNetNews/inn] bf66db: backlogstat: Make it work again

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: bf66db0a1d02183296fb9a1690985c961fd3c980
      https://github.com/InterNetNews/inn/commit/bf66db0a1d02183296fb9a1690985c961fd3c980
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2023-01-24 (Tue, 24 Jan 2023)

  Changed paths:
    M contrib/backlogstat.in

  Log Message:
  -----------
  backlogstat: Make it work again

Fix incorrect syntax causing Perl errors.
Now works fine.