Docs: Add a missing description for the `$wpdb` global notation in the DocBlock for `WP_Importer::stop_the_insanity()`.

Props tejas5989.
Fixes #41447.

Built from https://develop.svn.wordpress.org/trunk@41194


git-svn-id: http://core.svn.wordpress.org/trunk@41034 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-importer.php

@@ -250,7 +250,7 @@ class WP_Importer {
 	/**
 	 * Reset global variables that grow out of control during imports
 	 *
-	 * @global wpdb  $wpdb
+	 * @global wpdb  $wpdb       WordPress database abstraction object.
 	 * @global array $wp_actions
 	 */
 	public function stop_the_insanity() {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41193';
+$wp_version = '4.9-alpha-41194';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.