$ibx = PublicInbox::Inbox->new($ibx);
my $pi_config = "$tmpdir/config";
{
open my $fh, '>', $pi_config or die "open($pi_config): $!";
print $fh <<"" or die "print $pi_config: $!";
[publicinbox "test"]
$ibx = PublicInbox::Inbox->new($ibx);
my $pi_config = "$tmpdir/config";
{
open my $fh, '>', $pi_config or die "open($pi_config): $!";
print $fh <<"" or die "print $pi_config: $!";
[publicinbox "test"]