{
  "sdk": {
    "version": "2.1.700",
    "rollForward": "feature"
  }
}

{
  "sdk": {
    "version": "3.1.100",
    "rollForward": "feature"
  }
}

Use newer LTS (3.1) so that acceptance tests for multi-targeting project have two .NET Core targets
Use newer LTS (3.1) so that acceptance tests for multi-targeting project have two .NET Core targets
