bug #4379 [OptionsResolver] Fix wrong namespace in example (rybakit)

This PR was merged into the master branch.

Discussion
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[OptionsResolver] Fix wrong namespace in example

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

Commits
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0db5e03 [OptionsResolver] Fix wrong namespace in example

components/options_resolver.rst

@@ -106,7 +106,7 @@ the bug might not appear until it's deployed to the live system.
 Fortunately, the :class:`Symfony\\Component\\OptionsResolver\\OptionsResolver`
 class helps you to fix this problem::
 
-    use Symfony\Component\OptionsResolver\Options;
+    use Symfony\Component\OptionsResolver\OptionsResolver;
 
     class Mailer
     {