Customfield textarea file serving bug

Customfield textarea lib.php file implements  function custofield_textarea_pluginfile. In this function file is served by calling send_file function with wrong params. This causes that served file name is always 86400.

Function call in customfield/field/textarea/lib.php looks like this:

send_file($file, 86400, 0, $forcedownload, $options);

Actual send_file function expects such params:

function send_file($path, $filename, $lifetime = null , $filter=0, $pathisstring=false, $forcedownload=false, $mimetype='',
$dontdie=false, array $options = array())

Function call in customfield/field/textarea/lib.php should be:

send_file($file, $filename, 86400, 0, false, $forcedownload, '', false, $options);