[PATCH] add $unixtime to http variables

[Roberto De Ioris]

>
> This won't work as you expect since request to upstream is created
> once and used when sending request to multiple upstream servers
> (due to proxy_next_upstream/fastcgi_next_upstream/...).  Logging
> $upstream_response_time would be better idea.
>
>

Thanks Maxim, this works perfectly for logging slow-accept() (caused by full
backlog queue or insufficient processes) as the counter starts before
nginx connection to upstream.

Bye
-- 
Roberto De Ioris
http://unbit.it