Remove .
Remove .

The command should be stand-alone, not part of a "sentence":

```
Enable-WindowsOptionalFeature : A positional parameter cannot be found that accepts argument '.'.
At line:1 char:1
+ Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V  ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Enable-WindowsOptionalFeature], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.Dism.Commands.EnableWindowsOptionalFeatureCommand
```
sni/vagrant,chrisroberts/vagrant,mitchellh/vagrant,bryson/vagrant,gitebra/vagrant,chrisroberts/vagrant,sni/vagrant,marxarelli/vagrant,bryson/vagrant,marxarelli/vagrant,mitchellh/vagrant,bryson/vagrant,marxarelli/vagrant,mitchellh/vagrant,marxarelli/vagrant,mitchellh/vagrant,sni/vagrant,sni/vagrant,bryson/vagrant,chrisroberts/vagrant,gitebra/vagrant,gitebra/vagrant,gitebra/vagrant,chrisroberts/vagrant