diff -r c7c34916027a -r 177826044cd9 wp/wp-admin/includes/class-walker-nav-menu-checklist.php
--- a/wp/wp-admin/includes/class-walker-nav-menu-checklist.php	Mon Oct 14 18:06:33 2019 +0200
+++ b/wp/wp-admin/includes/class-walker-nav-menu-checklist.php	Mon Oct 14 18:28:13 2019 +0200
@@ -15,7 +15,6 @@
  */
 class Walker_Nav_Menu_Checklist extends Walker_Nav_Menu {
 	/**
-	 *
 	 * @param array $fields
 	 */
 	public function __construct( $fields = false ) {
@@ -36,7 +35,7 @@
 	 * @param array  $args   Not used.
 	 */
 	public function start_lvl( &$output, $depth = 0, $args = array() ) {
-		$indent = str_repeat( "\t", $depth );
+		$indent  = str_repeat( "\t", $depth );
 		$output .= "\n$indent<ul class='children'>\n";
 	}
 
@@ -52,7 +51,7 @@
 	 * @param array  $args   Not used.
 	 */
 	public function end_lvl( &$output, $depth = 0, $args = array() ) {
-		$indent = str_repeat( "\t", $depth );
+		$indent  = str_repeat( "\t", $depth );
 		$output .= "\n$indent</ul>";
 	}
 
@@ -74,9 +73,9 @@
 	public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
 		global $_nav_menu_placeholder;
 
-		$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_nav_menu_placeholder) - 1 : -1;
-		$possible_object_id = isset( $item->post_type ) && 'nav_menu_item' == $item->post_type ? $item->object_id : $_nav_menu_placeholder;
-		$possible_db_id = ( ! empty( $item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $item->ID : 0;
+		$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval( $_nav_menu_placeholder ) - 1 : -1;
+		$possible_object_id    = isset( $item->post_type ) && 'nav_menu_item' == $item->post_type ? $item->object_id : $_nav_menu_placeholder;
+		$possible_db_id        = ( ! empty( $item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $item->ID : 0;
 
 		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
 
@@ -84,34 +83,37 @@
 		$output .= '<label class="menu-item-title">';
 		$output .= '<input type="checkbox" class="menu-item-checkbox';
 
-		if ( ! empty( $item->front_or_home ) )
+		if ( ! empty( $item->front_or_home ) ) {
 			$output .= ' add-to-top';
+		}
 
-		$output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="'. esc_attr( $item->object_id ) .'" /> ';
+		$output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="' . esc_attr( $item->object_id ) . '" /> ';
 
 		if ( ! empty( $item->label ) ) {
 			$title = $item->label;
 		} elseif ( isset( $item->post_type ) ) {
 			/** This filter is documented in wp-includes/post-template.php */
 			$title = apply_filters( 'the_title', $item->post_title, $item->ID );
-			if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title )
+			if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title ) {
+				/* translators: %s: front page title */
 				$title = sprintf( _x( 'Home: %s', 'nav menu front page title' ), $title );
+			}
 		}
 
 		$output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title );
- 		$output .= '</label>';
+		$output .= '</label>';
 
 		// Menu item hidden fields
 		$output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />';
-		$output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="'. esc_attr( $item->object ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="'. esc_attr( $item->menu_item_parent ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="'. esc_attr( $item->type ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="'. esc_attr( $item->title ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="'. esc_attr( $item->url ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="'. esc_attr( $item->target ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item[' . $possible_object_id . '][menu-item-attr_title]" value="'. esc_attr( $item->attr_title ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="'. esc_attr( implode( ' ', $item->classes ) ) .'" />';
-		$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="'. esc_attr( $item->xfn ) .'" />';
+		$output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="' . esc_attr( $item->object ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="' . esc_attr( $item->menu_item_parent ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="' . esc_attr( $item->type ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="' . esc_attr( $item->title ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="' . esc_attr( $item->url ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="' . esc_attr( $item->target ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item[' . $possible_object_id . '][menu-item-attr_title]" value="' . esc_attr( $item->attr_title ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="' . esc_attr( implode( ' ', $item->classes ) ) . '" />';
+		$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="' . esc_attr( $item->xfn ) . '" />';
 	}
 
 } // Walker_Nav_Menu_Checklist