This module implements some sane defaults for Perl programs, as defined
by two typical (or not so typical - use your common sense) specimens of
Perl coders:

It's supposed to be mostly the same, with much lower memory usage, as:

use utf8;
use strict qw(vars subs);
use feature qw(say state switch);
use feature qw(unicode_strings unicode_eval current_sub fc evalbytes);
no feature qw(array_base);
no warnings;
use warnings qw(FATAL closed threads internal debugging pack
portable prototype inplace io pipe unpack malloc
deprecated glob digit printf layer
reserved taint closure semicolon);
no warnings qw(exec newline unopened);