Adopt Laravel coding style

Shift automatically applies the Laravel coding style - which uses the PSR-2 coding style as a base with some minor additions.

You may customize the adopted coding style by adding your own [PHP CS Fixer][1] `.php_cs` config file to your project root. Feel free to use [Shift's Laravel ruleset][2] to help you get started.

[1]: https://github.com/FriendsOfPHP/PHP-CS-Fixer
[2]: https://gist.github.com/laravel-shift/cab527923ed2a109dda047b97d53c200

app/Notifications/ExpectedCheckinNotification.php

@@ -35,7 +35,8 @@ class ExpectedCheckinNotification extends Notification
         $notifyBy = [];
         $item = $this->params['item'];
 
-        $notifyBy[]='mail';
+        $notifyBy[] = 'mail';
+
         return $notifyBy;
     }
 
@@ -46,18 +47,15 @@ class ExpectedCheckinNotification extends Notification
      */
     public function toMail()
     {
-
         $message = (new MailMessage)->markdown('notifications.markdown.expected-checkin',
             [
                 'date' => Helper::getFormattedDateObject($this->params->expected_checkin, 'date', false),
                 'asset' => $this->params->present()->name(),
                 'serial' => $this->params->serial,
-                'asset_tag' => $this->params->asset_tag
+                'asset_tag' => $this->params->asset_tag,
             ])
             ->subject(trans('mail.Expected_Checkin_Notification', ['name' => $this->params->present()->name()]));
 
         return $message;
-
     }
-
 }