[PATCH 2 of 3] HTTP/2: added support for trailers in HTTP responses

[Piotr Sikora]

Hey Valentin,

> It's better to keep return values consistent with
> ngx_http_v2_create_headers_frame() and introduce
> NGX_HTTP_V2_NO_TRAILERS instead of NGX_HTTP_V2_FRAME_ERROR.

NGX_HTTP_V2_NO_TRAILERS feels a bit weird, but whatever works for you is fine.

> There's no reason to check "trailers" on each iteration.
> I think you can put it inside the "if (in == NULL)" condition.

Good catch, thanks!

> Please consider the changes below.

Applied (with removed empty lines between error message and "return NULL").

Thanks!

Best regards,
Piotr Sikora