Docs: Update the DocBlock description for `WP_Query::is_single()` to mention that it works for any post types excluding pages.

Props ryankienstra.
Fixes #38225.

Built from https://develop.svn.wordpress.org/trunk@39052


git-svn-id: http://core.svn.wordpress.org/trunk@38994 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-query.php

@@ -3816,7 +3816,7 @@ class WP_Query {
 	/**
 	 * Is the query for an existing single post?
 	 *
-	 * Works for any post type, except attachments and pages
+	 * Works for any post type excluding pages.
 	 *
 	 * If the $post parameter is specified, this function will additionally
 	 * check if the query is for one of the Posts specified.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-beta1-39051';
+$wp_version = '4.7-beta1-39052';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.