Upstream changes:
2.52 - applied pod patch rt.cpan.org#79603
- fixed rt.cpan.org#80006, it tolerates now whitespaces
after the block closing >
- added -Plug parameter, which introduces plugin closures.
idea from rt.cpan.org#79694.
Currently available hooks are:
pre_open, pre_read, post_read, pre_parse_value, post_parse_value
- applied patch by Ville Skytt, spelling fixes.
- fixed rt.cpan.org#85080, more spelling fixes.
- applied patch rt.cpan.org#85132, which fixes a deprecation
warning in perl 5.18 and above. Fixes#85668 as well.
- applied patch rt.cpan.org#85538, c-style comments
are ignored inside here-docs.
- fixed rt.cpan.org#82637, don't use indirect object syntax
in pod and code.