wp-includes/class-pop3.php:621$textoptional"" function strip_clf ($text = "") { // Strips \r\n from server responses if(empty($text)) return $text; else { $stripped = str_replace(array("\r","\n"),'',$text); return $stripped; } }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-pop3.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.