treewide: favor open(..., '+<&=', $fd)

Cut down on unnecessary imports of IO::Handle and
method lookup + dispatch overhead.

1 files changed, 5 insertions, 2 deletions

diff --git a/t/epoll.t b/t/epoll.t
index f2a68904..f346b387 100644
--- a/t/epoll.t
+++ b/t/epoll.t
@@ -1,11 +1,14 @@
+#!perl -w
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict;
+use v5.10.1;
 use Test::More;
-use IO::Handle;
 use PublicInbox::Syscall qw(:epoll);
 plan skip_all => 'not Linux' if $^O ne 'linux';
 my $epfd = epoll_create();
 ok($epfd >= 0, 'epoll_create');
-my $hnd = IO::Handle->new_from_fd($epfd, 'r+'); # close on exit
+open(my $hnd, '+<&=', $epfd); # for autoclose
 
 pipe(my ($r, $w)) or die "pipe: $!";
 is(epoll_ctl($epfd, EPOLL_CTL_ADD, fileno($w), EPOLLOUT), 0,