Typo (was: #1029: USEFOR 3.2.2 References: Should comments be a MUST NOT?)

[Frank Ellermann <nobody@xxxxxxxxxxxxxxxxx>]

>>> o Message identifiers MUST be separated with CFWS,
>>>    typically a space or FWS.
>>>
>>> references  =  "References:" SP msg-id-list CRLF
>>> msg-id-list =  [CFWS] *( msg-id CFWS ) msg-id [CFWS] CRLF

    msg-id-list =  [CFWS] *( msg-id CFWS ) msg-id [CFWS]