use 2-space indentation (as we do everywhere else)

app.js

@@ -6,7 +6,7 @@ var cookieParser = require('cookie-parser');
 var bodyParser = require('body-parser');
 
 var routes = require('./routes/index');
-var avatars = require('./routes/avatars')
+var avatars = require('./routes/avatars');
 
 var app = express();
 
@@ -23,13 +23,13 @@ app.use(cookieParser());
 app.use(express.static(path.join(__dirname, 'public')));
 
 app.use('/', routes);
-app.use('/avatars', avatars)
+app.use('/avatars', avatars);
 
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {
-    var err = new Error('Not Found');
-    err.status = 404;
-    next(err);
+  var err = new Error('Not Found');
+  err.status = 404;
+  next(err);
 });
 
 // error handlers
@@ -37,23 +37,23 @@ app.use(function(req, res, next) {
 // development error handler
 // will print stacktrace
 if (app.get('env') === 'development') {
-    app.use(function(err, req, res, next) {
-        res.status(err.status || 500);
-        res.render('error', {
-            message: err.message,
-            error: err
-        });
+  app.use(function(err, req, res, next) {
+    res.status(err.status || 500);
+    res.render('error', {
+      message: err.message,
+      error: err
     });
+  });
 }
 
 // production error handler
 // no stacktraces leaked to user
 app.use(function(err, req, res, next) {
-    res.status(err.status || 500);
-    res.render('error', {
-        message: err.message,
-        error: {}
-    });
+  res.status(err.status || 500);
+  res.render('error', {
+    message: err.message,
+    error: {}
+  });
 });
 
 module.exports = app;