Update pkg/apis/kops/v1alpha2/instancegroup.go
Update pkg/apis/kops/v1alpha2/instancegroup.go

Co-authored-by: John Gardiner Myers <417a0501a2a48b0b674f24f24b1420961dc2d759@proofpoint.com>
justinsb/kops,kubernetes/kops,kubernetes/kops,justinsb/kops,justinsb/kops,kubernetes/kops