Documentation problem with hook_comment

Good catch! It looks like in Drupal 5, there was a 'form' operation that had a return value, but this was removed in Drupal 6. There is apparently no return value being used in Drupal 6 (I checked the code in the comment module pretty thoroughly for where this hook was being invoked, and nowhere did it ever use the return value). So I am just taking out the return value section. I did a few other edits too. This is in the contrib area for Drupal 6, so I went ahead and committed the changes. To see what was done:
http://drupal.org/cvs?commit=300858