copy() fails to understand filenames without extensions

[moraleida]

PHP Warning:  copy(): The second argument to copy() function cannot be a directory in /../htdocs/wp-content/plugins/S3-Uploads/inc/class-s3-uploads.php on line 187

The original implementation of that function would fire an error on my VVV because copy() couldn't understand that tempnam() generated filenames were real files, not directories.

Using the real file name available on $file['name'] array solved this -> https://github.com/moraleida/S3-Uploads/blob/fix-php-cant-copy-to-directory/inc/class-s3-uploads.php#L184