minor #14090 CS: Unary operators should be placed adjacent to their operands (keradus)

This PR was merged into the 2.3 branch.

Discussion
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CS: Unary operators should be placed adjacent to their operands

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

Update before upcoming changes on PHP CS Fixer 1.7

To keep fabbot.io happy ;)

Commits
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2367f4a CS: Unary operators should be placed adjacent to their operands

Author: fabpot

Authentication/Token/AbstractToken.php

@@ -252,7 +252,7 @@ private function hasUserChanged(UserInterface $user)
         }
 
         if ($this->user instanceof EquatableInterface) {
-            return ! (bool) $this->user->isEqualTo($user);
+            return !(bool) $this->user->isEqualTo($user);
         }
 
         if ($this->user->getPassword() !== $user->getPassword()) {