[PATCH 4/6] fetch: fix missing chdir arg for error reporting

[Eric Wong <e@80x24.org>]

We need to run `git config -l' in the epoch directory which
failed to get the proper config listing.  This went unnoticed
because it doesn't affect any known users and was only found
during code inspection for waitpid usage cleanups.
---
 lib/PublicInbox/Fetch.pm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/Fetch.pm b/lib/PublicInbox/Fetch.pm
index f93eeebe..8f3a87e2 100644
--- a/lib/PublicInbox/Fetch.pm
+++ b/lib/PublicInbox/Fetch.pm
@@ -131,8 +131,9 @@ sub do_fetch { # main entry point
 				$epoch = $nr;
 			} else {
 				warn "W: $edir missing remote.*.url\n";
-				my $pid = spawn([qw(git config -l)], undef,
-					{ 1 => $lei->{2}, 2 => $lei->{2} });
+				my $o = { -C => $edir };
+				$o->{1} = $o->{2} = $lei->{2};
+				my $pid = spawn([qw(git config -l)], undef, $o);
 				waitpid($pid, 0);
 				$lei->child_error($?) if $?;
 			}