lei: use -signal numbers for old Perl

Unlike modern Perls, Perl 5.16.3 on CentOS doesn't accept
negative string signals like "-TERM" .

This only became a problem since commit b231d91f42d7
(treewide: enable warnings in all exec-ed processes)
made our code stricter by enabling more warnings.
In both cases, the kill is probably unnecessary and safe
to remove since we can rely on closing sockets to drop
processes.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/LeiXSearch.pm b/lib/PublicInbox/LeiXSearch.pm
index b09c2462..e85fd3c4 100644
--- a/lib/PublicInbox/LeiXSearch.pm
+++ b/lib/PublicInbox/LeiXSearch.pm
@@ -437,7 +437,7 @@ sub do_post_augment {
         my $err = $@;
         if ($err) {
                 if (my $lxs = delete $lei->{lxs}) {
-                        $lxs->wq_kill('-TERM');
+                        $lxs->wq_kill(-POSIX::SIGTERM());
                         $lxs->wq_close;
                 }
                 $lei->fail("$err");