Fix typo in _deprecated_argument() and start using _deprecated_argument() in wp-includes files. See #11386 props nacin.

git-svn-id: http://svn.automattic.com/wordpress/trunk@12537 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/widgets.php

@@ -980,10 +980,13 @@ function is_active_sidebar( $index ) {
  * @since 2.2.0
  * @access private
  *
- * @param bool $update Optional, deprecated.
+ * @param bool $deprecated. Not used.
  * @return array Upgraded list of widgets to version 3 array format when called from the admin.
  */
 function wp_get_sidebars_widgets($deprecated = true) {
+	if ( $deprecated !== true )
+		_deprecated_argument(__FUNCTION__, 'deprecated', '0.0');
+
 	global $wp_registered_widgets, $wp_registered_sidebars, $_wp_sidebars_widgets;
 
 	// If loading from front page, consult $_wp_sidebars_widgets rather than options