Re: [PATCH] send-email: clarify missing subject error

[Junio C Hamano <gitster@pobox.com>]

Harald Nordgren <haraldnordgren@gmail.com> writes:

>> An input file to the 'git send-email' program is often the output
>> of 'git format-patch'.  Such a file begins with a UNIX 'From '
>> line, followed by email headers such as 'From:', 'Date:', and
>> 'Subject:'.  The 'Subject:' line cannot be the first line of
>> the file in this case, yet it is a valid input.
>>
>> The only condition that this subroutine flags as an error is when
>> the file lacks a subject line.  "No 'Subject:' line in '%s'\n" is a
>> clear message to display and is an improvement over the original.
>>
>> However, the fact that the first line does not start with
>> "Subject:" is irrelevant to the basis of the subroutine's
>> decision to issue an error, I think.
>
> Yeah, that makes sense, so maybe we don't need to focus on it being
> the first line, but Subject needs to be there somewhere before the
> body.

Yeah, the curious thing is that the subroutine with the loop is
happy as long as it finds "^Subject: " somewhere, not necessarily
before the first blank line.

That is why I said "No 'Subject: ' line in '%s'\n" is clear enough
and an improvement over the original.  Anything else will add lie to
it.

Thanks.