Network devices in the lab have by default an indentation of 1 for
sub-sections, and so does the netcfg.NetworkConfig constructor
indent param.
This will fix reported issue 21055, and make the integration tests
to pass.
Fixes#21055
When using AWS we have to use the full domain name in the inventory file, which
we rather than the short name. This change avoids that ending up being
set in the tests.