use strict;
use warnings;
use Fatal qw(:void open);

# set $! to some random number; we just want to see
# if it is modified
$! = 42;
print "$!\n";

open my $f, '<no_such_file' or die "Can't open no_such_file: $!";

##</code><code>##

Illegal byte sequence
Can't open no_such_file: Illegal byte sequence at t.pl line 10.

##</code><code>##

local(\$", \$!) = (', ', 0);

##</code><code>##

Illegal byte sequence
Can't open no_such_file: No such file or directory at t.pl line 10.