[exim] A small inconsistency

Given the following pipe transport, the Envelope-To header just has a linefeed for the line ending, not CRLF (at least on Exim 4.66). This strikes me as inconsistent. Less polite people might call it a bug ;-)

store_mail:
driver = pipe
return_fail_output
batch_max=999
use_crlf=yes
envelope_to_add

Neil Youngman