Invalid property "VPCOptions: VPCId" in AWS ES VPC cloudformation template

[Marcos Nino-Ruiz]

Hi, first of all I want to congratulate you for the awesome product, it is truly amazing!
While using it I just found the following small bug when recording a creation of an AWS-ES domain on cloudformation:
Describe the bug
template will have the invalid property
VPCOptions: VPCId: "vpc-id123" ...

as in:

resource:
        Type: "AWS::Elasticsearch::Domain"
        Properties:
(...)
            VPCOptions: 
                VPCId: "vpc-ID123"
                SubnetIds: (...)

**Related Mapping**
Type: "AWS::Elasticsearch::Domain"

**To Reproduce**
follow standard procedure to create a VPC ES domain:
see: https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-vpc.html

**Expected behavior**
as described in the official documentation, this option is not valid:
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-elasticsearch-domain.html?shortFooter=true#cfn-elasticsearch-domain-vpcoptions
 
is not a showstopper whatsoever, just in case you have the same issue somewhere else. Thanks again for this contribution!!!

[Ian Mckay]

Cheers Marcos,

This one will be resolved in the next release, or use master. If you find others please raise as you find them.