Bug#653750: acl_smtp_dkim is not included in exhaustive acl list in section 40.2

[Regid Ichira]

--- a/spec.txt  2012-03-19 01:17:55.461361543 +0200
+++ b/spec.txt  2012-03-19 01:15:25.000000000 +0200
@@ -23661,6 +23661,7 @@ options in the main part of the configur
     acl_smtp_auth      ACL for AUTH
     acl_smtp_connect   ACL for start of SMTP connection
     acl_smtp_data      ACL after DATA is complete
+    acl_smtp_dkim      ACL after ???? is complete
     acl_smtp_etrn      ACL for ETRN
     acl_smtp_expn      ACL for EXPN
     acl_smtp_helo      ACL for HELO or EHLO

  ???? because I wasn't sure whether after a message is received means
after DATA.