daemon: rely on $SIG{__WARN__} for error output

warn/carp usage is unavoidable given Perl itself and standard
libraries, so just rely on localized $SIG{__WARN__} from
60d262483a4d6ddf (daemon: use per-listener SIG{__WARN__} callbacks, 2022-08-08)
for all error reporting.

While we're in the area, make some of the error handling more
consistent between IMAP/NNTP/POP3.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index 5e8a6a66..26840662 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -660,8 +660,8 @@ sub long_step {
         if ($@ || !$self->{sock}) { # something bad happened...
                 delete $self->{long_cb};
                 my $elapsed = now() - $t0;
-                $@ and $self->err("%s during long response[$fd] - %0.6f",
-                                    $@, $elapsed);
+                $@ and warn("$@ during long response[$fd] - ",
+                                sprintf('%0.6f', $elapsed),"\n");
                 $self->out(" deferred[$fd] aborted - %0.6f", $elapsed);
                 $self->close;
         } elsif ($more) { # $self->{wbuf}: