SubjectAccessReview typos groups field name

[liggitt]

The Groups field of a SubjectAccessReviewSpec is being serialized as group:

kubernetes/pkg/apis/authorization/v1beta1/types.go

Line 119 in b841a8b

Groups []string `json:"group,omitempty" protobuf:"bytes,4,rep,name=group"`

:

// Groups is the groups you're testing for.
Groups []string `json:"group,omitempty" protobuf:"bytes,4,rep,name=group"`

This is already documented as group for v1beta1, so we can't easily change it now, but should be fixed in the v1 version

[liggitt]

cc @cjcullen

[deads2k]

This is already documented as group for v1beta1, so we can't easily change it now, but should be fixed in the v1 version

Right, this was used as the basis for the authz webhook quite some time ago. I agree it should be changed, but that API won't be ready for graduation for a while.