Array warnings when not adding/updating filefields/imagefields.

Basically when you submit a node without any filefield or imagefield additions or changes, there won't be entries added into $ffp as the "!empty($file['data']['process']" condition never hits.

So you get warnings like:

    * warning: Invalid argument supplied for foreach() in /var/www/html/drupal/drupal-6.6/sites/all/modules/filefield_paths/filefield_paths.module on line 284.
    * warning: Invalid argument supplied for foreach() in /var/www/html/drupal/drupal-6.6/sites/all/modules/filefield_paths/filefield_paths.module on line 296.

Included patch just wraps that section with:

if (is_array($ffp['#types'])) {
...
}