Small improvement over previous patch

Sergey A. Osokin provided this small improvement for the his previous patch
regarding the "zero_in_uri" being absent in newer development versions of
Nginx.

Signed-off-by: Adrian Perez <aperez@igalia.com>

ngx_http_fancyindex_module.c

@@ -591,6 +591,11 @@ ngx_http_fancyindex_handler(ngx_http_request_t *r)
     }
 
     /* TODO: Win32 */
+#if defined(nginx_version) && nginx_version < 8038
+    if (r->zero_in_uri) {
+        return NGX_DECLINED;
+    }
+#endif
 
     if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
         return NGX_DECLINED;