###  desc <file> <description>
   changes the description for a file.  if you are a master or
   file janitor, you can change the description for any file.
   otherwise you can only change the descriptions for files you
   have uploaded.

   the description is restricted to 5 lines of 60 characters
   each, and is broken up between words.  you can force a line
   break by putting a '|' in the comment.
