Plugin works except for Pending notification | Peter's Collaboration E-mails | Forum

All other parts of the plugin are working but not pending notification.
I've been debugging the problem with the "pending" section of the plugin and narrowed it down to this.
peters_collaboration_emails.php

It doesn't make any sense to me but this isn't allowing email to be sent:
189 $pce_body .= __('Review and publish it here: ', 'peters_collaboration_emails') . get_edit_post_link( $pce_object->ID, false );

but this is:
189 $pce_body .= get_edit_post_link( $pce_object->ID, false );