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        s/\s+$//;           # no trailing whitespace
        s/\/+$//;           # no trailing /'s
        next unless length; # is there anything left?
        my ($k, $v) = split /\s*=\s*/, $_, 2;
        $k !~ /^\s*$/ && $v !~ /^\s*$/ or sbozyp_die("could not parse line $. '$line_copy': '$config_file'");
        $CONFIG{$k} = $v;
    }
}

sub sbozyp_getopts {
    my $err_prefix = (caller(1))[3] =~ /main_([a-z]+)$/ ? "$1: " : '';
    my $getopt_err;
    local $SIG{__WARN__} = sub { chomp($getopt_err = lcfirst $_[0]) };
    GetOptionsFromArray(@_) or sbozyp_die($err_prefix.$getopt_err);
}

sub sbozyp_pod2usage {
    my ($sections) = @_;
    my $fh = sbozyp_open('>', \my $pod);
    pod2usage(
        -input    => __FILE__,