[DebugBundle] Enhance some comments

Author: lyrixx

DataCollector/DumpDataCollector.php

@@ -53,7 +53,7 @@ public function __clone()
     public function dump(Data $data)
     {
         if ($this->stopwatch) {
-           $this->stopwatch->start('dump');
+            $this->stopwatch->start('dump');
         }
         if ($this->isCollected) {
             $this->isCollected = false;
@@ -160,7 +160,6 @@ public function getDumps($format, $maxDepthLimit = -1, $maxItemsPerDepth = -1)
             $dumper = new JsonDumper();
         } else {
             throw new \InvalidArgumentException(sprintf('Invalid dump format: %s', $format));
-
         }
         $dumps = array();
 

Tests/EventListener/DumpListenerTest.php

@@ -13,7 +13,6 @@
 
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
-use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
 use Symfony\Component\HttpKernel\EventListener\DumpListener;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\VarDumper\VarDumper;