[HttpKernel] Fixed the test about the availability of the logger

Author: stof

Profiler/Profiler.php

@@ -88,7 +88,7 @@ public function loadProfile($token)
  */
  public function saveProfile(Profile $profile)
  {
- if (!$ret = $this->storage->write($profile) && null !== $this->logger) {
+ if (!($ret = $this->storage->write($profile)) && null !== $this->logger) {
  $this->logger->err('Unable to store the profiler information.');
  }