Bump H3 headings to H2 on Export screen for better accessibility.

Props metodiew.
Fixes #33608.

Built from https://develop.svn.wordpress.org/trunk@33914


git-svn-id: http://core.svn.wordpress.org/trunk@33883 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/export.php

@@ -149,7 +149,7 @@ function export_date_options( $post_type = 'post' ) {
 <p><?php _e('This format, which we call WordPress eXtended RSS or WXR, will contain your posts, pages, comments, custom fields, categories, and tags.'); ?></p>
 <p><?php _e('Once you&#8217;ve saved the download file, you can use the Import function in another WordPress installation to import the content from this site.'); ?></p>
 
-<h3><?php _e( 'Choose what to export' ); ?></h3>
+<h2><?php _e( 'Choose what to export' ); ?></h2>
 <form method="get" id="export-filters">
 <input type="hidden" name="download" value="true" />
 <p><label><input type="radio" name="content" value="all" checked="checked" /> <?php _e( 'All content' ); ?></label></p>

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-33913';
+$wp_version = '4.4-alpha-33914';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.