Include confirmation addresses in ID-Submission success notice.

Fixes issue ietf-tools#1097.
 - Legacy-Id: 6638

Author: JoelHalpern

ietf/submit/views.py

@@ -145,7 +145,7 @@ def draft_status(request, submission_id, submission_hash=None, message=None):
                     can_approve = _can_approve(request.user, detail)
                     can_cancel = _can_cancel(request.user, detail, submission_hash)
                     allow_edit = None
-                    message = ('success', 'Your submission is pending email authentication. An email has been sent you with instructions.')
+                    message = ('success', 'Your submission is pending email authentication. An email has been sent to %s with instructions.'%', '.join(detail.confirmation_email_list()))
         else:
             submission_hash = detail.get_hash()
             if submission_hash: