I've installed WordFence in a dutch version of WordPress and WordFence reports the version.php file in the wp-includes folder as being modified:
The Original Version of the file 41 */ 42 $required_mysql_version = '5.0'; 43
The Modified Version on your WordPress system 41 */ 42 $required_mysql_version = '5.0'; 43 44 $wp_local_package = 'nl_NL'; 45
I know it's just one file, but still. It would be great if WordFence would be able to distinguish different localized WP installations.