CGI scripts not creating links correctly with cgimod (with tentative solution)

[jaapb]

Some CGI scripts (Gitweb and ikiwiki are the ones I'm tried) don't quite work with Ocsigen's cgimod. When they generate links, they seem to paste SERVER_NAME and REQUEST_URI together, but then you get links that look like http://www.server.comcgi-bin/path since REQUEST_URI is relative rather than absolute (at least in Ocsigen's cgimod)

Not sure whether it is OK with the standard, but the following patch solves the problem for me.

--- a/src/extensions/cgimod.ml
+++ b/src/extensions/cgimod.ml
@@ -271,7 +271,7 @@ let array_environment filename re doc_root ri hostname =
 
         (* Neither in the CGI's spec nor in the HTTP headers but used, e.g., by PHP *)
         Printf.sprintf "REMOTE_PORT=%d" (Ocsigen_request_info.remote_port ri);
-        Printf.sprintf "REQUEST_URI=%s" (Ocsigen_request_info.url_string ri);
+        Printf.sprintf "REQUEST_URI=%s" (string_conform0 (Ocsigen_request_info.url_string ri));
         (* FIXME: URI instead of URL ? *)
         Printf.sprintf "SCRIPT_FILENAME=%s" filename ] ;
       additionnal_headers