/usr/share/konwert/devel/mkany is in konwert-dev 1.8-11.2build2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #!/usr/bin/perl
print scalar <>;
print $_ = <>;
chomp;
@utf8 = split;
shift @utf8;
foreach (@utf8) {$utf8{$_} = $_}
while (<>)
{
	/^(\S+)$/ or print, next;
	$charset = $1;
	($plik = $0) =~ s(/[^/]*$)(/../aux/charsets/$charset);
	open CHARSET, $plik or next;
	print $charset;
	%charset = ();
	while (<CHARSET>)
	{
		$charset{$2} = $1
			if /^\s*(\S+)\s+(\S+)\s*$/
			&& defined $utf8{$2} && !defined $charset{$2};
	}
	foreach (@utf8) {print " $charset{$_}"}
	print "\n";
}
 |