Use number->status-code to generate status-code from the code returned

in the CGI header.

scheme/httpd/cgi-server.scm

@@ -264,7 +264,7 @@
 	    (make-redirect-response (string-trim loc)))
 	;; Send the response header back to the client
 	(make-response ;code message seconds mime extras body
-	 (car stat)			; code
+	 (number->status-code (car stat))
 	 (cdr stat)			; text
 	 (time)
 	 ctype