[mod_cgi] do not send "Status" back to client

"Status" from CGI/1.1 environment should not be sent back to client.

Also, do not send "Status" back to client in mod_scgi
and more precisely parse for "Status" in mod_fastcgi

src/mod_cgi.c

@@ -352,6 +352,8 @@ static int cgi_response_parse(server *srv, connection *con, plugin_data *p, buff
 					} else {
 						con->http_status = 502;
 					}
+					/* do not send Status to client */
+					buffer_reset(ds->value);
 				}
 				break;
 			case 8:

src/mod_fastcgi.c

@@ -2077,7 +2077,7 @@ static int fcgi_response_parse(server *srv, connection *con, plugin_data *p, buf
 			/* authorizers shouldn't affect the response headers sent back to the client */
 
 			/* don't forward Status: */
-			if (0 != strncasecmp(key, "Status", key_len)) {
+			if (key_len != sizeof("Status")-1 || 0 != strncasecmp(key, "Status", key_len)) {
 				data_string *ds;
 				if (NULL == (ds = (data_string *)array_get_unused_element(con->response.headers, TYPE_STRING))) {
 					ds = data_response_init();

src/mod_scgi.c

@@ -1742,6 +1742,8 @@ static int scgi_response_parse(server *srv, connection *con, plugin_data *p, buf
 					} else {
 						con->http_status = 502;
 					}
+					/* do not send Status to client */
+					buffer_reset(ds->value);
 				}
 				break;
 			case 8: