```ruby
class Vlc < Cask
  homepage 'http://www.videolan.org/vlc/'
  url 'http://get.videolan.org/vlc/2.1.0/macosx/vlc-2.1.0.dmg'
  version '2.1.0'
  sha1 'a28961b75ca445ac8daad7944c71d6dbab0c7397'
  link 'VLC.app'
end
```

Update VLC to version 2.1.1
user
```ruby
class Vlc < Cask
  homepage 'http://www.videolan.org/vlc/'
  url 'http://get.videolan.org/vlc/2.1.1/macosx/vlc-2.1.1.dmg'
  version '2.1.1'
  sha1 'ef3ded27e0ca622ae2262840ba2d7d05090b0a0c'
  link 'VLC.app'
end
```
assistant