Terraform init error variables-ignition.tf

[mtbvang]

I get the following error doing a terraform init from cmder on windows with terraform 0.11.6.

λ terraform init
Initializing modules...
- module.container_linux
- module.vpc
- module.etcd
- module.ignition_masters
- module.masters
Error downloading modules: Error loading modules: module masters: Error parsing .terraform\modules\a6d55dc7db89e295b5d38b4ac42cff84\modules\aws\master-asg\variables-ignition.tf: At 1:1: expected: IDENT | STRING | ASSIGN | LBRACE got: PERIOD