diff -r c7c34916027a -r 177826044cd9 wp/wp-includes/widgets/class-wp-widget-categories.php
--- a/wp/wp-includes/widgets/class-wp-widget-categories.php	Mon Oct 14 18:06:33 2019 +0200
+++ b/wp/wp-includes/widgets/class-wp-widget-categories.php	Mon Oct 14 18:28:13 2019 +0200
@@ -23,8 +23,8 @@
 	 */
 	public function __construct() {
 		$widget_ops = array(
-			'classname' => 'widget_categories',
-			'description' => __( 'A list or dropdown of categories.' ),
+			'classname'                   => 'widget_categories',
+			'description'                 => __( 'A list or dropdown of categories.' ),
 			'customize_selective_refresh' => true,
 		);
 		parent::__construct( 'categories', __( 'Categories' ), $widget_ops );
@@ -67,13 +67,13 @@
 
 		if ( $d ) {
 			echo sprintf( '<form action="%s" method="get">', esc_url( home_url() ) );
-			$dropdown_id = ( $first_dropdown ) ? 'cat' : "{$this->id_base}-dropdown-{$this->number}";
+			$dropdown_id    = ( $first_dropdown ) ? 'cat' : "{$this->id_base}-dropdown-{$this->number}";
 			$first_dropdown = false;
 
 			echo '<label class="screen-reader-text" for="' . esc_attr( $dropdown_id ) . '">' . $title . '</label>';
 
 			$cat_args['show_option_none'] = __( 'Select Category' );
-			$cat_args['id'] = $dropdown_id;
+			$cat_args['id']               = $dropdown_id;
 
 			/**
 			 * Filters the arguments for the Categories widget drop-down.
@@ -105,26 +105,26 @@
 /* ]]> */
 </script>
 
-<?php
+			<?php
 		} else {
-?>
+			?>
 		<ul>
-<?php
-		$cat_args['title_li'] = '';
+			<?php
+			$cat_args['title_li'] = '';
 
-		/**
-		 * Filters the arguments for the Categories widget.
-		 *
-		 * @since 2.8.0
-		 * @since 4.9.0 Added the `$instance` parameter.
-		 *
-		 * @param array $cat_args An array of Categories widget options.
-		 * @param array $instance Array of settings for the current widget.
-		 */
-		wp_list_categories( apply_filters( 'widget_categories_args', $cat_args, $instance ) );
-?>
+			/**
+			 * Filters the arguments for the Categories widget.
+			 *
+			 * @since 2.8.0
+			 * @since 4.9.0 Added the `$instance` parameter.
+			 *
+			 * @param array $cat_args An array of Categories widget options.
+			 * @param array $instance Array of settings for the current widget.
+			 */
+			wp_list_categories( apply_filters( 'widget_categories_args', $cat_args, $instance ) );
+			?>
 		</ul>
-<?php
+			<?php
 		}
 
 		echo $args['after_widget'];
@@ -141,11 +141,11 @@
 	 * @return array Updated settings to save.
 	 */
 	public function update( $new_instance, $old_instance ) {
-		$instance = $old_instance;
-		$instance['title'] = sanitize_text_field( $new_instance['title'] );
-		$instance['count'] = !empty($new_instance['count']) ? 1 : 0;
-		$instance['hierarchical'] = !empty($new_instance['hierarchical']) ? 1 : 0;
-		$instance['dropdown'] = !empty($new_instance['dropdown']) ? 1 : 0;
+		$instance                 = $old_instance;
+		$instance['title']        = sanitize_text_field( $new_instance['title'] );
+		$instance['count']        = ! empty( $new_instance['count'] ) ? 1 : 0;
+		$instance['hierarchical'] = ! empty( $new_instance['hierarchical'] ) ? 1 : 0;
+		$instance['dropdown']     = ! empty( $new_instance['dropdown'] ) ? 1 : 0;
 
 		return $instance;
 	}
@@ -159,23 +159,22 @@
 	 */
 	public function form( $instance ) {
 		//Defaults
-		$instance = wp_parse_args( (array) $instance, array( 'title' => '') );
-		$title = sanitize_text_field( $instance['title'] );
-		$count = isset($instance['count']) ? (bool) $instance['count'] :false;
+		$instance     = wp_parse_args( (array) $instance, array( 'title' => '' ) );
+		$count        = isset( $instance['count'] ) ? (bool) $instance['count'] : false;
 		$hierarchical = isset( $instance['hierarchical'] ) ? (bool) $instance['hierarchical'] : false;
-		$dropdown = isset( $instance['dropdown'] ) ? (bool) $instance['dropdown'] : false;
+		$dropdown     = isset( $instance['dropdown'] ) ? (bool) $instance['dropdown'] : false;
 		?>
-		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e( 'Title:' ); ?></label>
-		<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /></p>
+		<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
+		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" /></p>
 
-		<p><input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('dropdown'); ?>" name="<?php echo $this->get_field_name('dropdown'); ?>"<?php checked( $dropdown ); ?> />
-		<label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e( 'Display as dropdown' ); ?></label><br />
+		<p><input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'dropdown' ); ?>" name="<?php echo $this->get_field_name( 'dropdown' ); ?>"<?php checked( $dropdown ); ?> />
+		<label for="<?php echo $this->get_field_id( 'dropdown' ); ?>"><?php _e( 'Display as dropdown' ); ?></label><br />
 
-		<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('count'); ?>" name="<?php echo $this->get_field_name('count'); ?>"<?php checked( $count ); ?> />
-		<label for="<?php echo $this->get_field_id('count'); ?>"><?php _e( 'Show post counts' ); ?></label><br />
+		<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'count' ); ?>" name="<?php echo $this->get_field_name( 'count' ); ?>"<?php checked( $count ); ?> />
+		<label for="<?php echo $this->get_field_id( 'count' ); ?>"><?php _e( 'Show post counts' ); ?></label><br />
 
-		<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('hierarchical'); ?>" name="<?php echo $this->get_field_name('hierarchical'); ?>"<?php checked( $hierarchical ); ?> />
-		<label for="<?php echo $this->get_field_id('hierarchical'); ?>"><?php _e( 'Show hierarchy' ); ?></label></p>
+		<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'hierarchical' ); ?>" name="<?php echo $this->get_field_name( 'hierarchical' ); ?>"<?php checked( $hierarchical ); ?> />
+		<label for="<?php echo $this->get_field_id( 'hierarchical' ); ?>"><?php _e( 'Show hierarchy' ); ?></label></p>
 		<?php
 	}