Re: [PATCH 1/3] mailinfo: ensure handle_filter gets only one line at a time

Junio C Hamano [off-list ref] writes:

The function is intended to be fed one logical line at a time to
inspect, but a QP encoded raw input line can have more than one
lines, just like BASE64 encoded one.

Quoting LF as =0A may be unusual but RFC2045 allows it.

Well, this is a bit dark-gray.

The canonical line ending CRLF should not be represented as =0A
and the intention of RFC2045 seems to allow =0A only as part of
binary contents.  So strictly speaking this may not be needed,
but there may always be not quite conforming MUA that would
break the assumption and would bite us, so we'd better be safe
than sorry.