Incorrect session_cache path

Thanks for this great module. It was easy to create a custom module which did exactly what I needed with very little code.

The problem I came across:
My site was reporting it's inability to create the session_cache folder.
Session cache directory /../private/session_cache could not be created.

The problem is in session_cache_file.module Line 43 in function session_cache_file_directory()

There is a / at the beginning of $path which shouldn't be there. I think.
Remove the / at the beginning and the problem goes away.

This problem may only occur with a private folder path like mine = ../private

function session_cache_file_directory($bin = NULL) {
  $path = variable_get('file_private_path');

  // Typically $path == 'sites/default/files/private'.
  if (empty($path)) {
    drupal_set_message(t('Session Cache File: the <strong>Private file system path</strong> is not set. Please configure it <a href="@url">here</a>.',
      array('@url' => url('admin/config/media/file-system'))), 'warning', FALSE);
    return FALSE;
  }
  //
  $path = "/$path/session_cache"; // <<<<<<<<<<<<  $path = "$path/session_cache"; 

My apologies for not creating a diff. My computer died last week and I am still setting up my dev tools.

Regards
Geoff
behindthepage