wp-includes/ID3/getid3.lib.php:1788$stringstringstring public static function trimNullByte($string) { return trim($string, "\x00"); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ID3/getid3.lib.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.