Node sample fix.

res.send(200) will always return success when checking if the file has been uploaded before; maybe an express res.send API change that happened along the way.

Author: daure

samples/Node.js/app.js

@@ -36,12 +36,12 @@ app.post('/upload', multipartMiddleware, function(req, res) {
 app.get('/upload', function(req, res) {
     flow.get(req, function(status, filename, original_filename, identifier) {
         console.log('GET', status);
-        res.send(200, (status == 'found' ? 200 : 404));
+        res.send(status == 'found' ? 200 : 404);
     });
 });
 
 app.get('/download/:identifier', function(req, res) {
     flow.write(req.params.identifier, res);
 });
 
-app.listen(3000);
+app.listen(3000);