Fix issue with AWS region configuration and default value.

Author: rbruhn

config/filesystems.php

@@ -48,7 +48,7 @@
             'driver' => 's3',
             'key' => env('AWS_ACCESS_KEY_ID'),
             'secret' => env('AWS_SECRET_ACCESS_KEY'),
-            'region' => env('AWS_DEFAULT_REGION'),
+            'region' => env('AWS_REGION', 'us-east-2'),
             'bucket' => env('AWS_BUCKET'),
             'url' => env('AWS_URL'),
             'endpoint' => env('AWS_ENDPOINT'),