In case output is redirected to a pipe, ensure stdout and stderr
are always unbuffered, as -watch may go long periods without
any output to fill up buffers.
# Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict;
-use warnings;
+use IO::Handle;
use PublicInbox::WatchMaildir;
use PublicInbox::Config;
use PublicInbox::DS;
use PublicInbox::Sigfd;
use PublicInbox::Syscall qw(SFD_NONBLOCK);
my $oldset = PublicInbox::Sigfd::block_signals();
+STDOUT->autoflush(1);
+STDERR->autoflush(1);
my ($config, $watch_md);
my $reload = sub {
$config = PublicInbox::Config->new;