in pkg/cmd/cmdutil/cmdutil.go [73:81]
func ValidateRFC3339TimeFormat(flagName string, input string) error {
if _, err := time.Parse(time.RFC3339, input); err != nil {
return e.FlagValidationError{
FlagName: flagName,
Allowed: "time in RFC3339 format, e.g. 2020-01-07T01:03:47Z",
InvalidValue: input}
}
return nil
}