minor #539 fix security logout fixture (jrushlow)

This PR was squashed before being merged into the 1.0-dev branch (closes #539).

Discussion
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fix security logout fixture

#474 changed implemented \LogicException instead of \Exception for make:auth. Fixture still produced \Exception for assertion.

Commits
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e5cb483 fix security logout fixture

Author: weaverryan

tests/Security/fixtures/expected/SecurityController_logout.php

@@ -12,6 +12,6 @@ class SecurityController extends AbstractController
      */
     public function logout()
     {
-        throw new \Exception('This method can be blank - it will be intercepted by the logout key on your firewall');
+        throw new \LogicException('This method can be blank - it will be intercepted by the logout key on your firewall.');
     }
 }