Description:
------------
With apache2 module apache2 always responds with "Connection: Close" for a HTTP/1.0 (but not for 1.1)request. Source of this appears to be the line:

apr_table_unset(r->headers_in, "Connection");

in (both) sapi_apache2.c. Omit this line. Apache2 decides on its own by the existence of the Content-Length: header in the result. HTTP/1.1 proofes it.

Reproduce code:
---------------
Send:
GET http://localhost/test/test.php HTTP/1.0
Connection: Keep-Alive


Expected result:
----------------
HTTP/1.1 200 OK
Date: Fri, 12 Dec 2003 15:42:46 GMT
Server: Apache/2.0.48
X-Powered-By: PHP/4.3.4
Expires: Mon, 26 Jul 1997 05:00:00 GMT
Last-Modified: Fri, 12 Dec 2003 15:42:47 GMT
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 4
Connection: Keep-Alive
Content-Type: text/plain; charset=ISO-8859-1

xxxx

Actual result:
--------------
HTTP/1.1 200 OK
Date: Fri, 12 Dec 2003 15:42:46 GMT
Server: Apache/2.0.48
X-Powered-By: PHP/4.3.4
Expires: Mon, 26 Jul 1997 05:00:00 GMT
Last-Modified: Fri, 12 Dec 2003 15:42:47 GMT
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 4
Connection: close
Content-Type: text/plain; charset=ISO-8859-1

xxxx