[NO TESTS NEEDED] API list networks should return [] when used with n…

…o networks

Signed-off-by: zhangguanzhang <[email protected]>

pkg/domain/infra/abi/network.go

@@ -11,7 +11,7 @@ import (
 )
 
 func (ic *ContainerEngine) NetworkList(ctx context.Context, options entities.NetworkListOptions) ([]*entities.NetworkListReport, error) {
-	var reports []*entities.NetworkListReport
+	reports := make([]*entities.NetworkListReport, 0)
 
 	config, err := ic.Libpod.GetConfig()
 	if err != nil {