WordPress/wp-content/themes/twentysixteen/sidebar.php

<?php
/**
 * The template for the sidebar containing the main widget area
 *
 * @package WordPress
 * @subpackage Twenty_Sixteen
 * @since Twenty Sixteen 1.0
 */
?>

<?php if ( is_active_sidebar( 'sidebar-1' ) ) : ?>
	<aside id="secondary" class="sidebar widget-area" role="complementary">
		<?php dynamic_sidebar( 'sidebar-1' ); ?>
	</aside><!-- .sidebar .widget-area -->
<?php endif; ?>
Importing Twenty Sixteen, default theme for 2016. Fixes #36497. Built from https://develop.svn.wordpress.org/trunk@40851 git-svn-id: http://core.svn.wordpress.org/trunk@40702 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2017-05-30 23:21:43 +02:00			`<?php`
			`/**`
			`* The template for the sidebar containing the main widget area`
			`*`
			`* @package WordPress`
			`* @subpackage Twenty_Sixteen`
			`* @since Twenty Sixteen 1.0`
			`*/`
			`?>`

Code is Poetry. WordPress' code just... wasn't. This is now dealt with. Props jrf, pento, netweb, GaryJ, jdgrimes, westonruter, Greg Sherwood from PHPCS, and everyone who's ever contributed to WPCS and PHPCS. Fixes #41057. Built from https://develop.svn.wordpress.org/trunk@42343 git-svn-id: http://core.svn.wordpress.org/trunk@42172 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2017-12-01 00:11:00 +01:00			`<?php if ( is_active_sidebar( 'sidebar-1' ) ) : ?>`
Importing Twenty Sixteen, default theme for 2016. Fixes #36497. Built from https://develop.svn.wordpress.org/trunk@40851 git-svn-id: http://core.svn.wordpress.org/trunk@40702 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2017-05-30 23:21:43 +02:00			`<aside id="secondary" class="sidebar widget-area" role="complementary">`
			`<?php dynamic_sidebar( 'sidebar-1' ); ?>`
			`</aside><!-- .sidebar .widget-area -->`
			`<?php endif; ?>`