minor #4948 Fixes for 2.6 branch (ifdattic)

This PR was merged into the 2.6 branch.

Discussion
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Fixes for 2.6 branch

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.6
| Fixed tickets |

Commits
-------

9ad21ea Fix typos
6e023c1 Fix typos

Author: weaverryan

components/serializer.rst

@@ -331,7 +331,7 @@ having unique identifiers::
 
     $serializer = new Serializer(array($normalizer), array($encoder));
     echo $serializer->serialize($org, 'json');
-    // {"name":"Les-Tilleuls.coop","members":[{"name":"K\u00e9vin", organization: "Les-Tilleuls.coop"]}
+    // {"name":"Les-Tilleuls.coop","members":[{"name":"K\u00e9vin", organization: "Les-Tilleuls.coop"}]}
 
 JMSSerializer
 -------------

components/var_dumper/advanced.rst

@@ -20,7 +20,7 @@ like this::
     use Symfony\Component\VarDumper\Dumper\CliDumper;
     use Symfony\Component\VarDumper\Dumper\HtmlDumper;
 
-    VarDumper::setHandler(function($var) {
+    VarDumper::setHandler(function ($var) {
         $cloner = new VarCloner();
         $dumper = 'cli' === PHP_SAPI ? new CliDumper() : new HtmlDumper();