Declare return type for data_got_mod_rewrite() in unit test.

Author: Paul Bearne

tests/phpunit/tests/admin/includes/misc/gotModRewrite.php

@@ -10,6 +10,11 @@
  */
 class Tests_got_mod_rewrite extends WP_UnitTestCase {
 
+	public function tear_down() {
+		remove_all_filters( 'got_rewrite' );
+		parent::tear_down();
+	}
+
 	/**
 	 * Tests that got_mod_rewrite() correctly detects mod_rewrite based on server and filters.
 	 *
@@ -56,7 +61,7 @@ public function test_got_mod_rewrite( $expected, $apache_loaded, $filter_value =
 	 *     filter_value:  bool|null,
 	 * }>
 	 */
-	public function data_got_mod_rewrite() {
+	public function data_got_mod_rewrite(): array {
 		return array(
 			'Default behavior (should match filter or internal check)' => array(
 				'expected'      => true,