Code cleanup and documentation improvements.

app/Console/Commands/DecryptAttachment.php

@@ -1,5 +1,4 @@
 <?php
-
 /**
  * DecryptAttachment.php
  * Copyright (c) 2018 thegrumpydictator@gmail.com
@@ -20,6 +19,8 @@
  * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
  */
 
+/** @noinspection MultipleReturnStatementsInspection */
+
 declare(strict_types=1);
 
 namespace FireflyIII\Console\Commands;