cgi-client: handler excess data in cgi_feed_headers()
cgi-client: handler excess data in cgi_feed_headers()

Move the code form cgi_feed_headers3(); consider the response body
tail where it was added to the buffer.

CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy