symfony/symfony — pull request #9026 by jakzal (2013-09-13 11:51:20+00:00)
Title: [FrameworkBundle][Security] Replaced void return type with null for consistency

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

We're using `null` everywhere else.