X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=t%2Fwatch_filter_rubylang.t;h=09217d94fcfa368e1215ec0a53ad252d5f0cc440;hb=e39585ee2bdcbeaab7b6bd33b3568021042d0879;hp=72895d8595ccfbf97c8bf02b083ebe78bf283b23;hpb=a09f678d8254064af7ca6dcfb3c3f84b5ae37b51;p=public-inbox.git

diff --git a/t/watch_filter_rubylang.t b/t/watch_filter_rubylang.t
index 72895d85..09217d94 100644
--- a/t/watch_filter_rubylang.t
+++ b/t/watch_filter_rubylang.t
@@ -1,4 +1,4 @@
-# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2019-2020 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict;
 use warnings;
@@ -24,7 +24,7 @@ SKIP: {
 
 for my $v (@v) {
 	my @warn;
-	$SIG{__WARN__} = sub { push @warn, @_ };
+	local $SIG{__WARN__} = sub { push @warn, @_ };
 	my $cfgpfx = "publicinbox.$v";
 	my $inboxdir = "$tmpdir/$v";
 	my $maildir = "$tmpdir/md-$v";