minor #18606 [FrameworkBundle] Remove duplicated code in ContainerDebugCommand (JhonnyL)

This PR was merged into the 2.7 branch.

Discussion
----------

[FrameworkBundle] Remove duplicated code in ContainerDebugCommand

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  |no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

5885cbc [FrameworkBundle] Remove duplicated code in ContainerDebugCommand

Author: fabpot

src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php

@@ -99,25 +99,21 @@ protected function execute(InputInterface $input, OutputInterface $output)
         }
 
         $this->validateInput($input);
+        $object = $this->getContainerBuilder();
 
         if ($input->getOption('parameters')) {
-            $object = $this->getContainerBuilder()->getParameterBag();
+            $object = $object->getParameterBag();
             $options = array();
         } elseif ($parameter = $input->getOption('parameter')) {
-            $object = $this->getContainerBuilder();
             $options = array('parameter' => $parameter);
         } elseif ($input->getOption('tags')) {
-            $object = $this->getContainerBuilder();
             $options = array('group_by' => 'tags', 'show_private' => $input->getOption('show-private'));
         } elseif ($tag = $input->getOption('tag')) {
-            $object = $this->getContainerBuilder();
             $options = array('tag' => $tag, 'show_private' => $input->getOption('show-private'));
         } elseif ($name = $input->getArgument('name')) {
-            $object = $this->getContainerBuilder();
             $name = $this->findProperServiceName($input, $output, $object, $name);
             $options = array('id' => $name);
         } else {
-            $object = $this->getContainerBuilder();
             $options = array('show_private' => $input->getOption('show-private'));
         }