[Ietf-dkim] Question about lone CR / LF

[Steffen Nurpmeso <[e-mail]>]

Hello.

Is there any advise on a "lone CR" or "lone LF" on a line?  Do
these count as "whitespace characters"?  Well they surely do not
as whitespace is SP / HTAB.  But what if i see

  SP CR CRLF
or
  LF CRLF
or
  LF au CRLF

when i create a digest?
For now i assume anything such except the very CRLF is whitespace.
But i cannot read this from RFC 6376.

Thank you,

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)