Coding Standards: Fix code indent in unescape_invalid_shortcodes().

Props joelcj91, GaryJ.
Fixes #43346.

git-svn-id: https://develop.svn.wordpress.org/trunk@42738 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/shortcodes.php

@@ -463,6 +463,7 @@ function unescape_invalid_shortcodes( $content ) {
 		'[' => '[',
 		']' => ']',
 	);
+
 	$content = strtr( $content, $trans );
 
 	return $content;