Re: [PATCH 4/4] t0021: fix filehandle usage on older perl

On 02 Nov 2016, at 19:23, Jeff King [off-list ref] wrote:

The rot13-filter.pl script calls methods on implicitly
defined filehandles (STDOUT, and the result of an open()
call).  Prior to perl 5.13, these methods are not
automatically loaded, and perl will complain with:

 Can't locate object method "flush" via package "IO::Handle"

Let's explicitly load IO::File (which inherits from
IO::Handle). That's more than we need for just "flush", but
matches what perl has done since:

 http://perl5.git.perl.org/perl.git/commit/15e6cdd91beb4cefae4b65e855d68cf64766965d

Signed-off-by: Jeff King <redacted>
---
I see J6t solved this a week ago using "FileHandle". These days that is
basically a compatibility synonym for IO::File. I think both should be
available pretty much everywhere, so I went with IO::File for the
reasons above. But if that doesn't work for some reason, switching to
"use FileHandle" should be OK, too.

I don't have an old enough perl easily available to test it either way.

t/t0021/rot13-filter.pl | 1 +
1 file changed, 1 insertion(+)

diff --git a/t/t0021/rot13-filter.pl b/t/t0021/rot13-filter.pl
index e3ea58e1e..4d5697ee5 100644
--- a/t/t0021/rot13-filter.pl
+++ b/t/t0021/rot13-filter.pl

@@ -21,6 +21,7 @@

use strict;
use warnings;
+use IO::File;

my $MAX_PACKET_CONTENT_SIZE = 65516;
my @capabilities            = @ARGV;
-- 
2.11.0.rc0.258.gf434c15