Export: Use correct context for the `Posts` label on the Export screen.

The string refers to the post type name specifically, not to a generic term to identify a publication on WordPress.

Props audrasjb, jdy68.
Fixes #49306.
Built from https://develop.svn.wordpress.org/trunk@47272


git-svn-id: http://core.svn.wordpress.org/trunk@47072 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/export.php

@@ -180,7 +180,7 @@ function export_date_options( $post_type = 'post' ) {
 <p><label><input type="radio" name="content" value="all" checked="checked" aria-describedby="all-content-desc" /> <?php _e( 'All content' ); ?></label></p>
 <p class="description" id="all-content-desc"><?php _e( 'This will contain all of your posts, pages, comments, custom fields, terms, navigation menus, and custom posts.' ); ?></p>
 
-<p><label><input type="radio" name="content" value="posts" /> <?php _e( 'Posts' ); ?></label></p>
+<p><label><input type="radio" name="content" value="posts" /> <?php _ex( 'Posts', 'post type general name' ); ?></label></p>
 <ul id="post-filters" class="export-filters">
 	<li>
 		<label><span class="label-responsive"><?php _e( 'Categories:' ); ?></span>

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47271';
+$wp_version = '5.4-alpha-47272';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.