Index: wp-includes/class-wp-rewrite.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- wp-includes/class-wp-rewrite.php	(revision 8d5c62b9235e6b356d280aac27c1ee8a4d55e7d3)
+++ wp-includes/class-wp-rewrite.php	(revision )
@@ -1553,10 +1553,12 @@
 		 * Filter the list of rewrite rules formatted for output to an .htaccess file.
 		 *
 		 * @since 1.5.0
+		 * @since 4.6.0 Introduced the `$home_root` parameter.
 		 *
+		 * @param string $home_root Home root path.
 		 * @param string $rules mod_rewrite Rewrite rules formatted for .htaccess.
 		 */
-		$rules = apply_filters( 'mod_rewrite_rules', $rules );
+		$rules = apply_filters( 'mod_rewrite_rules', $rules, $home_root );
 
 		/**
 		 * Filter the list of rewrite rules formatted for output to an .htaccess file.