daemon: remove unused $parent_pipe variable

We can just create a ParentPipe and let PublicInbox::DS
manage its life cycle.  While we're at it, favor `\&coderef'
over `*coderef' so we're explicit about it being a code ref
and not some other ref type.

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index cd6a86afc705675a1dce7f1ecdb2b0ff8653995d..43ef2691341a7cd46924541a103c27b8b1e5c79b 100644 (file)
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -602,11 +602,10 @@ sub daemon_loop ($$$$) {
                WINCH => 'IGNORE',
                CHLD => \&PublicInbox::DS::enqueue_reap,
        };
-       my $parent_pipe;
        if ($worker_processes > 0) {
                $refresh->(); # preload by default
                my $fh = master_loop(); # returns if in child process
-               $parent_pipe = PublicInbox::ParentPipe->new($fh, *worker_quit);
+               PublicInbox::ParentPipe->new($fh, \&worker_quit);
        } else {
                reopen_logs();
                $set_user->() if $set_user;