Support getting the "fullname" out of the Signature profile setting.

[mmh] / etc / mhl.headers

; mhl.headers
;
; Default format file for displaying headers in
; MIME messages.  mhn calls the mhlproc with this
; filter to display message header.
;
overflowtext="***",overflowoffset=5
leftadjust,compwidth=9
ignores=msgid,message-id,received,content-type,content-transfer-encoding,content-id
Date:formatfield="%<(nodate{text})%{text}%|%(pretty{text})%>"
To:
cc:
From:decode
Subject:decode
:
extras:nocomponent
: