lei_xsearch: truncate curl stderr after reading it

We may have further URLs to read in that process, so ensure
we don't end up having tail send stale data.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/PublicInbox/LeiXSearch.pm b/lib/PublicInbox/LeiXSearch.pm
index 95862306..5cf02136 100644
--- a/lib/PublicInbox/LeiXSearch.pm
+++ b/lib/PublicInbox/LeiXSearch.pm
@@ -268,6 +268,7 @@ sub query_remote_mboxrd {
                 my $e = do { local $/; <$cerr> } //
                                 die "read(curl stderr): $!\n";
                 $coff += length($e);
+                truncate($cerr, 0);
                 next if (($? >> 8) == 22 && $e =~ /\b404\b/);
                 $lei->child_error($?);
                 $uri->query_form(q => $lei->{mset_opt}->{qstr});