lei: ->child_error less error-prone

I was calling "child_error(1, ...)" in a few places where I meant
to be calling "child_error(1 << 8, ...)" and inadvertantly
triggering SIGHUP in script/lei.  Since giving a zero exit code
to child_error makes no sense, just allow falsy values to
default to 1 << 8.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/LeiRediff.pm b/lib/PublicInbox/LeiRediff.pm
index 0ba5897c..60286b06 100644
--- a/lib/PublicInbox/LeiRediff.pm
+++ b/lib/PublicInbox/LeiRediff.pm
@@ -23,7 +23,7 @@ sub rediff_user_cb { # called by solver when done
         my $lei = $self->{lei};
         my $log_buf = delete $lei->{log_buf};
         $$log_buf =~ s/^/# /sgm;
-        ref($res) eq 'ARRAY' or return $lei->child_error(1 << 8, $$log_buf);
+        ref($res) eq 'ARRAY' or return $lei->child_error(0, $$log_buf);
         $lei->qerr($$log_buf);
         my ($git, $oid, $type, $size, $di) = @$res;
         my $oid_want = delete $self->{cur_oid_want};