symfony/symfony — pull request #13159 by stof (2014-12-29 20:58:30+00:00)
Title: Update functional tests to use the PSR NullLogger

| 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 avoids using the deprecated NullLogger in tests.

I'm applying this in 2.3 to make merging branches easier. This is especially needed for 2.7 because of deprecation warnings added in #13060 (tests are failing in this PR currently because of that)