tree cad3fb57c910427092eede0e9fee3f4e64c598b2
parent 6bf139440c192e157b9c0dab701fa2100fbb1e1e
author Jeff King <peff@peff.net> 1306448897 -0400
committer Junio C Hamano <gitster@pobox.com> 1306450615 -0700

format-patch: preserve subject newlines with -k

In older versions of git, we used rfc822 header folding to
indicate that the original subject line had multiple lines
in it.  But since a1f6baa (format-patch: wrap long header
lines, 2011-02-23), we now use header folding whenever there
is a long line.

This means that "git am" cannot trust header folding as a
sign from format-patch that newlines should be preserved.
Instead, format-patch needs to signal more explicitly that
the newlines are significant.  This patch does so by
rfc2047-encoding the newlines in the subject line. No
changes are needed on the "git am" end; it already decodes
the newlines properly.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>