Fixed coding style.

src/Entity/UserSystem/U2FKey.php

@@ -61,13 +61,16 @@ class U2FKey implements TwoFactorKeyInterface
     /**
      * We have to restrict the length here, as InnoDB only supports key index with max. 767 Bytes.
      * Max length of keyhandles should be 128. (According to U2F_MAX_KH_SIZE in FIDO example C code).
+     *
      * @ORM\Column(type="string", length=128)
+     *
      * @var string
      **/
     public $keyHandle;
 
     /**
      * @ORM\Column(type="string")
+     *
      * @var string
      **/
     public $publicKey;