Clarify source of the host name (#54693)
Clarify source of the host name (#54693)

The host could have been either the inventory name (`inventory_hostname`)
or the discovered hostname (`ansible_hostname`)

Inspecting the source code of `fetch.py` shows that the
inventory name is preferred.

```
if 'inventory_hostname' in task_vars:
                    target_name = task_vars['inventory_hostname']
```
thaim/ansible,thaim/ansible