daemon: always autoflush stdout/stderr

Users may log output to a pipe, so ensure these outputs are
unbuffered in userspace and go to the operating system ASAP
for other processes to pick up.

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index 9e177f2e..02d2dc5d 100644
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -8,6 +8,9 @@ package main;
 use strict;
 use warnings;
 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
+use IO::Handle;
+STDOUT->autoflush(1);
+STDERR->autoflush(1);
 require Danga::Socket;
 require POSIX;
 require PublicInbox::Listener;