process_io: pass args to awaitpid as list

Specifying {cb_args} in the options hash felt awkward to me.
Instead, just use the Perl stack like we do with awaitpid()
and pass the list down directly.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/PublicInbox/Qspawn.pm b/lib/PublicInbox/Qspawn.pm
index ea7ae647..0e52617c 100644
--- a/lib/PublicInbox/Qspawn.pm
+++ b/lib/PublicInbox/Qspawn.pm
@@ -58,10 +58,10 @@ sub _do_spawn {
         }
         $self->{cmd} = $cmd;
         $self->{-quiet} = 1 if $o{quiet};
-        $o{cb_arg} = [ \&waitpid_err, $self ];
         eval {
                 # popen_rd may die on EMFILE, ENFILE
-                $self->{rpipe} = popen_rd($cmd, $cmd_env, \%o) // die "E: $!";
+                $self->{rpipe} = popen_rd($cmd, $cmd_env, \%o,
+                                        \&waitpid_err, $self);
                 $limiter->{running}++;
                 $start_cb->($self); # EPOLL_CTL_ADD may ENOSPC/ENOMEM
         };