PSR-2 fixes
minor #12772 PSR-2 Fixes (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
----------

PSR-2 Fixes

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

##### This pull request brings symfony 2.3 back inline with PSR-2.

Commits
-------

eda746b PSR-2 fixes