Fix bucket "info" output format

$ s3cmd info s3://my_bucket

```

s3://my_bucket/ (bucket):
   Location:  eu-central-1
   Payer:     BucketOwner
   Expiration Rule: none
   policy:    none
   cors:    none
   ACL:       b3ab...219: FULL_CONTROL

Fix "tab" formatting for cors that is not aligned.
```