minor #36092 [3.4] Minor fixes (fancyweb)

This PR was merged into the 3.4 branch.

Discussion
----------

[3.4] Minor fixes

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

019350022c [3.4] Minor fixes

src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php

@@ -296,7 +296,7 @@ class MainConfiguration implements ConfigurationInterface
                     ->scalarNode('provider')->end()
                     ->scalarNode('parameter')->defaultValue('_switch_user')->end()
                     ->scalarNode('role')->defaultValue('ROLE_ALLOWED_TO_SWITCH')->end()
-                    ->booleanNode('stateless')->defaultValue(false)->end()
+                    ->booleanNode('stateless')->defaultFalse()->end()
                 ->end()
             ->end()
         ;

src/Symfony/Component/Security/Core/User/UserInterface.php

@@ -23,7 +23,7 @@ use Symfony\Component\Security\Core\Role\Role;
  *
  * Regardless of how your users are loaded or where they come from (a database,
  * configuration, web service, etc.), you will have a class that implements
- * this interface. Objects that implement this interface are created and 
+ * this interface. Objects that implement this interface are created and
  * loaded by different objects that implement UserProviderInterface.
  *
  * @see UserProviderInterface