=head1 DESCRIPTION
-CMS_final() finalises the structure B<cms>. It's purpose is to perform any
+CMS_final() finalises the structure B<cms>. Its purpose is to perform any
operations necessary on B<cms> (digest computation for example) and set the
appropriate fields. The parameter B<data> contains the content to be
processed. The B<dcont> parameter contains a BIO to write content to after