[InterNetNews/inn] 819ed8: Fix use of signed / unsigned variables

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: 819ed82585b5502f30cc9ec722f315f614f2bc1b
      https://github.com/InterNetNews/inn/commit/819ed82585b5502f30cc9ec722f315f614f2bc1b
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2024-02-11 (Sun, 11 Feb 2024)

  Changed paths:
    M backends/actsync.c
    M backends/innxmit.c
    M expire/makedbz.c
    M frontends/ctlinnd.c
    M frontends/getlist.c
    M frontends/ovdb_init.c
    M frontends/ovdb_server.c
    M frontends/ovdb_stat.c
    M include/inn/nntp.h
    M innd/cc.c
    M innd/chan.c
    M innd/nc.c
    M innd/rc.c
    M innd/site.c
    M innfeed/article.c
    M innfeed/configfile.y
    M innfeed/connection.c
    M innfeed/endpoint.c
    M innfeed/host.c
    M innfeed/imap_connection.c
    M innfeed/main.c
    M innfeed/misc.c
    M lib/innconf.c
    M lib/nntp.c
    M nnrpd/commands.c
    M nnrpd/list.c
    M nnrpd/misc.c
    M nnrpd/newnews.c
    M nnrpd/nnrpd.c
    M nnrpd/perl.c
    M nnrpd/sasl.c
    M nnrpd/tls.c
    M storage/buffindexed/buffindexed.c
    M storage/cnfs/cnfs.c
    M storage/ov.c
    M storage/ovdb/ovdb.c
    M storage/overdata.c
    M storage/overview.c
    M storage/ovsqlite/ovsqlite.c
    M storage/timecaf/timecaf.c
    M storage/timehash/timehash.c
    M storage/tradindexed/tdx-group.c
    M storage/tradspool/tradspool.c
    M tests/innd/artparse-t.c

  Log Message:
  -----------
  Fix use of signed / unsigned variables

With new -Wformat-signedness GCC warning.