Code cleanup [skip ci]

app/Providers/BusServiceProvider.php

@@ -23,7 +23,7 @@ class BusServiceProvider extends ServiceProvider
     public function boot(Dispatcher $dispatcher)
     {
         $dispatcher->mapUsing(
-            function($command) {
+            function ($command) {
                 return Dispatcher::simpleMapping(
                     $command, 'FireflyIII\Commands', 'FireflyIII\Handlers\Commands'
                 );