fix podman container restore without CreateNetNS

When a container does not use the default podman netns, for example
--network none or --network ns:/path a restore would fail because the
specgen check validates that c.config.StaticMAC is nil but the
unmarshaller sets it to an empty slice.

While we could make the check use len() > 0 I feel like it is more
common to check with != nil for ip and mac addresses.
Adding omitempty tag makes the json marshal/unmarshal work correctly.
This should not cause any issues.

Fixes #14389

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

0 files changed, 0 insertions, 0 deletions