use closefail qw(:standard);
use closefail { die "I'm not feeling so well: $!" };

##</code><code>##

{
    use closefail;
    open my $thing, $what or die "...";
    # ...
}   # <- still in effect as this block ends

##</code><code>##

{
    use closefail;
    {
        open my $thing, $what or die "...";
        # ...
    }
}