[PATCH] t/lei-sigpipe.t: ensure SIGPIPE is not ignored instead of not blocked

[Julien Moutinho <julm+public-inbox@sourcephile.fr>]

Ignoring a signal is different than blocking a signal.
---
 t/lei-sigpipe.t | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/t/lei-sigpipe.t b/t/lei-sigpipe.t
index 7fab9aeb..55c208e2 100644
--- a/t/lei-sigpipe.t
+++ b/t/lei-sigpipe.t
@@ -4,20 +4,16 @@
 use strict;
 use v5.10.1;
 use PublicInbox::TestCommon;
-use POSIX qw(WTERMSIG WIFSIGNALED SIGPIPE SIG_UNBLOCK SIG_SETMASK sigprocmask);
+use POSIX qw(WTERMSIG WIFSIGNALED SIGPIPE);
 use PublicInbox::OnDestroy;
 
-# undo systemd (and similar) blocking SIGPIPE, since lei expects to be run
+# undo systemd (and similar) ignoring SIGPIPE, since lei expects to be run
 # from an interactive terminal:
 # https://public-inbox.org/meta/20220227080422.gyqowrxomzu6gyin@sourcephile.fr/
-my $set = POSIX::SigSet->new;
-my $old = POSIX::SigSet->new;
-$set->emptyset or xbail "sigemptyset $!";
-$old->emptyset or xbail "sigemptyset $!";
-$set->addset(SIGPIPE);
-sigprocmask(SIG_UNBLOCK, $set, $old) or xbail "SIG_UNBLOCK: $!";
+my $oldSIGPIPE = $SIG{PIPE};
+$SIG{PIPE} = 'DEFAULT';
 my $cleanup = PublicInbox::OnDestroy->new($$, sub {
-	sigprocmask(SIG_SETMASK, $old);
+	$SIG{PIPE} = $oldSIGPIPE;
 });
 
 test_lei(sub {
-- 
2.35.1