Code clean up.

app/Mail/RegisteredUser.php

@@ -19,10 +19,8 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
-
 /**
  * RegisteredUser.php
  * Copyright (c) 2017 thegrumpydictator@gmail.com
@@ -41,9 +39,9 @@ use Illuminate\Queue\SerializesModels;
 class RegisteredUser extends Mailable
 {
     use Queueable, SerializesModels;
-    /** @var  string */
+    /** @var string */
     public $address;
-    /** @var  string */
+    /** @var string */
     public $ipAddress;
 
     /**