Inconsistencies between rfc5321bis and IANA registry

[aamelnikov]

John K wrote:

The SMTP Service Extensions Registry [2], is not consistent with Section 8.1, first bullet. In particular, the latter says "consists of SMTP service extensions with the associated keywords, and, as needed, parameters and verbs" but the registry shows the keyword, a description field, reference, and a Note. There is a separate registry for parameters, but no hint in the primary registry that people should look there.

[aamelnikov]

John K. also wrote:

Finally, getting down to the nit level, the reference for the Service Extensions registry itself points to Section 2.2, but 2.2 does not specify the registry at all and never has.

[aamelnikov]

The registry is now properly specified in 8.1.1 (in -17).