Relax digitalocean provider version constraints

* Relax fixed 0.1.2 version constraint to "~> 0.1.2", which
allows 0.1.3, 0.1.4, etc, but would not allow 0.2.0

CHANGES.md

@@ -23,6 +23,10 @@ Notable changes between versions.
   * Allow Container Linux channel/version to be chosen per-cluster
   * Fix issue where cluster deletion could require `terraform apply` multiple times
 
+#### Digital Ocean
+
+* Relax `digitalocean` provider version constraint
+
 ## v1.9.1
 
 * Kubernetes [v1.9.1](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.9.md#v191)

digital-ocean/container-linux/kubernetes/require.tf

@@ -5,7 +5,7 @@ terraform {
 }
 
 provider "digitalocean" {
-  version = "0.1.2"
+  version = "~> 0.1.2"
 }
 
 provider "local" {

docs/digital-ocean.md

@@ -58,7 +58,7 @@ Configure the DigitalOcean provider to use your token in a `providers.tf` file.
 
 ```tf
 provider "digitalocean" {
-  version = "0.1.2"
+  version = "0.1.3"
   token = "${chomp(file("~/.config/digital-ocean/token"))}"
   alias = "default"
 }