wp-admin/includes/class-pclzip.php:5337 function privErrorReset() { if (PCLZIP_ERROR_EXTERNAL == 1) { PclErrorReset(); } else { $this->error_code = 0; $this->error_string = ''; } }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-pclzip.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.