headers and their continuation lines are parsed.
(even if there was only one address in the header). If there is no
header matching \var{name}, return an empty list.
+If multiple headers exist that match the named header (e.g. if there
+are several \code{Cc} headers), all are parsed for addresses. Any
+continuation lines the named headers contain are also parsed.
+
XXX The current version of this function is not really correct. It
yields bogus results if a full name contains a comma.
\end{methoddesc}