Docs: Add a `@global` entry for `$wp` in `redirect_canonical()`.

Props afzalmultani.
See #41238.
Built from https://develop.svn.wordpress.org/trunk@41003


git-svn-id: http://core.svn.wordpress.org/trunk@40853 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/canonical.php

@@ -32,6 +32,7 @@
  * @global bool $is_IIS
  * @global WP_Query $wp_query
  * @global wpdb $wpdb WordPress database abstraction object.
+ * @global WP $wp Current WordPress environment instance. 
  *
  * @param string $requested_url Optional. The URL that was requested, used to
  *		figure if redirect is needed.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41002';
+$wp_version = '4.9-alpha-41003';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.