[ietf-dkim] Wording in draft-ietf-dkim-overview-09

[Eric Allman]

In reviewing the documents prior to the meeting today, I noticed an 
oddity in draft-ietf-dkim-overview-09.  The intro to section 5 says 
"The MSA signs the message..." and "The MDA verifies the 
signature...".  However, this isn't necessarily true, and in fact 
conflicts with 3.1.2 (Implementation Locality), 5.2 (Signing), 5.3 
(Verifying), and 5.6 (DKIM Placement within an ADMD).

If those words are intended to be relative to just the DKIM service 
then I suggest other wording such as "DKIM Signing Agent (DSA)" and 
"DKIM Verification Agent (DVA)".

eric