cleanup_unzip_destination to clean_up_unzip_destination

Co-authored-by: John Parris <[email protected]>

Author: t-hamano

tests/phpunit/tests/filesystem/unzipFileZiparchive.php

@@ -71,7 +71,7 @@ public function test_should_apply_unzip_file_filters() {
 
 		// Prepare test environment.
 		$unzip_destination = self::$test_data_dir . 'archive/';
-		$this->cleanup_unzip_destination( $unzip_destination ); // See #65443 for details.
+		$this->clean_up_unzip_destination( $unzip_destination ); // See #65443 for details.
 		mkdir( $unzip_destination );
 
 		_unzip_file_ziparchive( self::$test_data_dir . 'archive.zip', $unzip_destination );