Padre::Pod2HTML double anchors

[submersible_toaster]

Reported by cowens in #padre.

#!/usr/bin/perl 

use strict;
use warnings;

use Padre::Pod2HTML;

print Padre::Pod2HTML->pod2html(join '', <DATA>);

__DATA__
=head2 test

L<test>

[azawawi]

cowens++ Patch to fix <, < and << along

[azawawi]

Cowens found two bugs in Pod::Simple::XHTML where it writes double anchors instead of none for a =head2 and the other where it does not escape <, > and <<

He submitted a bug to Pod::Simple::XHTML; meanwhile the patch has been applied.

[azawawi]

Fixed in r7834