WP_Upgrader_Skin, error function should close div by calling footer

[aslam.sayyed]

this generate invalid html markup document, in some case page layout getting disturbed.

function error($errors) {
	if ( ! $this->done_header )
		$this->header();
	.... 
	// need fix something like this
	if ( ! $this->done_header )
		$this->footer();
}

[dd32]

I have a feeling this may have been rendered invalid by #25254

It might still be worth checking that header() / footer() are called consistently.

[chriscct7]

Closing as wontfix. Complete lack of interest on the ticket over the last 2 years. Feel free to reopen when more interest re-emerges (particularly if there's a patch)