"Destination provides only Pathstyle buckets" not saving

[alireza-salehi]

Describe the bug "Destination provides only Pathstyle buckets" option on "s3 service" not saved.

To Reproduce Steps to reproduce the behavior:

1. Go to 'S3 Service' tab on any job, check the box near "Destination provides only Pathstyle buckets"
2. Click on 'Save'
3. after refresh, check the box "Destination provides only Pathstyle buckets"
4. it is unchecked

Expected behavior it has to be checked after save.

[mattn]

https://github.com/inpsyde/backwpup/pull/119 should fix this.