devel/pear-HTML_Page2: fix HTML5 doctype and add lang attribute
Use <!DOCTYPE html> for HTML 4.01 strict and add lang attribute to the html tag for W3C validation compliance. PR: [[ https://bugs.freebsd.org/270453 | 270453 ]] Submitted by: dvl@FreeBSD.org Approved by: dvl@FreeBSD.org (maintainer timeout)