[InterNetNews/inn] e7f940: Fix various Clang warnings

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: e7f9404ad505e4c38d6eb196e66bfc3b77f040c2
      https://github.com/InterNetNews/inn/commit/e7f9404ad505e4c38d6eb196e66bfc3b77f040c2
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2021-12-07 (Tue, 07 Dec 2021)

  Changed paths:
    M history/his.c
    M include/inn/nntp.h
    M innd/art.c
    M innd/cc.c
    M innd/chan.c
    M innd/innd.c
    M innd/innd.h
    M innd/nc.c
    M innd/perl.c
    M innd/python.c
    M innd/rc.c
    M innd/status.c
    M innd/tinyleaf.c
    M lib/argparse.c
    M lib/cleanfrom.c
    M lib/clientlib.c
    M lib/conffile.c
    M lib/dbz.c
    M lib/hash.c
    M lib/hashtab.c
    M lib/innconf.c
    M lib/inndcomm.c
    M lib/messageid.c
    M lib/perl.c
    M lib/timer.c
    M lib/uwildmat.c
    M storage/buffindexed/buffindexed.c
    M storage/buildconfig.in
    M storage/expire.c
    M storage/interface.c
    M storage/ovdb/ovdb.c
    M storage/ovsqlite/ovsqlite.c
    M storage/timecaf/caf.c
    M storage/timehash/timehash.c
    M storage/tradspool/tradspool.c

  Log Message:
  -----------
  Fix various Clang warnings