The Kubernetes documentation is inconsistent about whether the correct spelling is `datetime` or `date-time`. After digging into the code a bit, it seems that both forms are accepted (and also weird variants like `--date--time`, but we'll ignore that possibility). See this comment for some background [1]. [1] https://github.com/kubernetes/kubernetes/issues/131082#issuecomment-2872063205 Signed-off-by: Roger Peppe <rogpeppe@gmail.com> Change-Id: Idcc5175536b1df3044e27d68c3c400713e711c0d Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1214780 TryBot-Result: CUEcueckoo <cueckoo@cuelang.org> Reviewed-by: Daniel Martí <mvdan@mvdan.cc>