How to change the title attribute for the WP logo image on wp-login.php

function my_login_logo_url() {
  return home_url();
}
add_filter( 'login_headerurl', 'my_login_logo_url' );

function my_login_logo_url_title() {
  return 'Your Site Name and Info';
}
add_filter( 'login_headertitle', 'my_login_logo_url_title' );

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