$x = PublicInbox::Inbox->new({});
is($x->base_url, undef, 'undef base_url allowed');
-my $tmpdir = File::Temp->newdir('pi-inbox-XXXXXX', TMPDIR => 1);
+my $tmpdir = File::Temp->newdir('pi-inbox-XXXX', TMPDIR => 1);
$x->{inboxdir} = $tmpdir->dirname;
is_deeply($x->cloneurl, [], 'no cloneurls');
is($x->description, '($INBOX_DIR/description missing)', 'default description');