Widgets: Adjust formatting for displaying the closing </nav> tag in widgets for consistency with the opening tag.

Follow-up to [48349].

See #48170.
Built from https://develop.svn.wordpress.org/trunk@48410


git-svn-id: http://core.svn.wordpress.org/trunk@48179 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/widgets/class-wp-widget-recent-posts.php

@@ -126,11 +126,11 @@ class WP_Widget_Recent_Posts extends WP_Widget {
 			<?php endforeach; ?>
 		</ul>
 
-		<?php if ( 'html5' === $format ) : ?>
-			</nav>
-		<?php endif; ?>
-
 		<?php
+		if ( 'html5' === $format ) {
+			echo '</nav>';
+		}
+
 		echo $args['after_widget'];
 	}