KUBECONFIG=no-such-file noobaa - panic invalid configuration

[guymguym]

This is the panic stack trace:

PANI[0000] ☠️  Panic Attack: [] invalid configuration: no configuration has been provided
panic: (*logrus.Entry) (0x24b1320,0xc0001d65b0)

goroutine 1 [running]:
github.com/sirupsen/logrus.Entry.log(0xc00012c150, 0xc000447b60, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/private/tmp/noobaa-20190927-12925-184yqru/pkg/mod/github.com/sirupsen/logrus@v1.4.2/entry.go:239 +0x2db
github.com/sirupsen/logrus.(*Entry).Log(0xc00012c620, 0x0, 0xc0004bbd48, 0x1, 0x1)
	/private/tmp/noobaa-20190927-12925-184yqru/pkg/mod/github.com/sirupsen/logrus@v1.4.2/entry.go:268 +0xeb
github.com/sirupsen/logrus.(*Entry).Logf(0xc00012c620, 0x0, 0x24fe074, 0x1d, 0xc0004bbda8, 0x2, 0x2)
	/private/tmp/noobaa-20190927-12925-184yqru/pkg/mod/github.com/sirupsen/logrus@v1.4.2/entry.go:314 +0xe2
github.com/sirupsen/logrus.(*Entry).Panicf(...)
	/private/tmp/noobaa-20190927-12925-184yqru/pkg/mod/github.com/sirupsen/logrus@v1.4.2/entry.go:352
github.com/noobaa/noobaa-operator/pkg/util.Panic(0x27ac760, 0xc0004454a0)
	/private/tmp/noobaa-20190927-12925-184yqru/src/github.com/noobaa/noobaa-operator/pkg/util/util.go:409 +0xf3
github.com/noobaa/noobaa-operator/pkg/util.CurrentNamespace(0x0, 0x0)
	/private/tmp/noobaa-20190927-12925-184yqru/src/github.com/noobaa/noobaa-operator/pkg/util/util.go:450 +0x112
github.com/noobaa/noobaa-operator/pkg/options.init.0()
	/private/tmp/noobaa-20190927-12925-184yqru/src/github.com/noobaa/noobaa-operator/pkg/options/options.go:90 +0x2c4

Note that this doesn't fail when using --kubeconfig=no-such-file...