commentmail_opts not saved properly

Hi!

Just tested this module from CVS. Very useful.

Found one little problem. The commentmail_opts option is not saved/used properly. The problem is in 2 different places:

1) In commentmail_settings():

  $form['commentmail_opt'] = array(

Should probably be:

  $form['commentmail_opts'] = array(

2) In commentmail_comment():

      $opt = variable_get('comment_opts', 'approval');

Should probably be:

      $opt = variable_get('commentmail_opts', 'approval');