Script does not back-up jobs in GitHub or Bitbucket organization

Structure in `$JENKINS_HOME/jobs`:

```
$ tree -d .
.
├── github_org
│   └── jobs
│       ├── gh_job_a
│       └── gh_job_b
└── regular_folder
    └── jobs
        ├── job_a
        └── job_b
```

Structure after unpacking backup: 

```
$ tree -d .
.
├── github_org
└── regular_folder
    └── jobs
        ├── job_a
        └── job_b
```