Those are the old non-class-based processors. They could very well be in use because there are no class-based processors in those directories (which runProcessor() would use instead if they were there).
The fix for the first one would be (lines 9 and 10 of core/model/modx/processors/system/filesys/file/unzip.php):
$nfp = $modx->getOption('new_folder_permissions');
$amode = !empty($nfp) ? octdec($modx->getOption('new_folder_permissions')) : 0777;
For the second one (lines 19 and 20 of core/model/modx/processors/system/filesys/folder/create.php):
$nfp = $modx->getOption('new_folder_permissions');
$amode = !empty($nfp) ? octdec($modx->getOption('new_folder_permissions')) : 0777;
Good old PhpStorm flags both as errors.
unzip.php also has some funkiness in its return statements and a deprecated function (dl()) that you may hear about depending on the error settings. dl() has been disabled in many SAPIs as of PHP 5.3, except in CLI and Embed.
Could you do a bug report on these?