mod_log_config %{Foobar}o doesn't work under 2.2

[Laurent Perez]

Hi

The Format String "%{Foobar}o" (The contents of Foobar: header line(s)
in the reply.) shown at
http://httpd.apache.org/docs/2.2/mod/mod_log_config.html does not work
for every reply header sent by the server. Instead, it give "-".

For example, Content-type works, but Date or Server do not. Is
"%{Server}o" the right syntax to log the "Server:" header, or is it
broken ? An ethereal trace shows a value for the Server: header.

thanks
laurent