[bug-mailutils] Unfolding header value

[Kidong Lee]

Hello, 

The section 2.2.3 in RFC2822, you can see the following text in
the last paragraph.

   The process of moving from this folded multiple-line representation
   of a header field to its single line representation is called
   "unfolding". Unfolding is accomplished by simply removing any CRLF
   that is immediately followed by WSP.  Each header field should be
   treated in its unfolded form for further syntactic and semantic
   evaluation.

According to RFC2822, header_get_value() and header_aget_value()
should unfold the value, shouldn't it?

What's your opinion about it?