'Print PDF Letter' activity has no subject field

the 'Print PDF Letter' activity has no subject field, both on the create pdf page and on the activity log on the users. This results in 'Print PDF Letter' from not being able to be distinguished and searched for if multiple letters are being used in civicrm. Currently on cursory glance that this results in no way to identify unique letters and activity in search.

The activity should have a subject line included. This problem was also discussed by Freya von Moltke-Foundation here: http://forum.civicrm.org/index.php/topic,27349.msg121824.html

This may not be a bug per say but is missing functionality with no true workaround or part of the print pdf letter that was not properly implemented. The problem is duplicated on the most recent demo server.