[PATCH] t/httpd-unix.t: stop tail(1) before stopping server

[Eric Wong]

When using the `TAIL' environment, the tail(1) process
inherits the non-FD_CLOEXEC pipe we introduced in commit
5f9baf725106 (t/httpd-unix: eliminate some busy waits, 2022-12-12).
We must ensure that pipe is gone before waiting on -httpd's
death by destroying the tail(1) process, first.
---
 t/httpd-unix.t | 1 +
 1 file changed, 1 insertion(+)

diff --git a/t/httpd-unix.t b/t/httpd-unix.t
index c45ff163..414ca0c8 100644
--- a/t/httpd-unix.t
+++ b/t/httpd-unix.t
@@ -136,6 +136,7 @@ SKIP: {
                my $pid = $read_pid->($pid_file);
                is(kill('TERM', $pid), 1, "signaled daemonized $w process");
                vec(my $rvec = '', fileno($p0), 1) = 1;
+               delete $td->{-extra}; # drop tail(1) process
                is(select($rvec, undef, undef, 1), 1, 'timeout for pipe HUP');
                is(my $undef = <$p0>, undef, 'process closed pipe writer at 
exit');
                ok(!-e $pid_file, "$w pid file unlinked at exit");