[ci skip] style and phpdoc-related changes (rel #1295)
diff --git a/system/core/Controller.php b/system/core/Controller.php
index 4914148..9196958 100644
--- a/system/core/Controller.php
+++ b/system/core/Controller.php
@@ -42,6 +42,7 @@
 	/**
 	 * Reference to the global CI instance
 	 *
+	 * @static
 	 * @var	object
 	 */
 	private static $instance;
@@ -71,6 +72,7 @@
 	/**
 	 * Return the CI object
 	 *
+	 * @static
 	 * @return	object
 	 */
 	public static function &get_instance()