Change owner for all `jid_dir`

Hello.

I encountered with a strange problem described in a #8295 and may be #8842.
The problem was the permission for 'jid_dir' directories.
You can reproduce it. Run a several jobs with 'root' user and then change 'user' option to another user without privileges. Some jobs, which 'jid_dir' is alredy created, is failing.