Update go-license dependency

[breml]

The current version of wwhrd does not recognize the license file in godotenv, because the license file is called LICENCE (British-English), see joho/godotenv#78.

After digging into the issue I found out, that wwhrd uses a out dated version of go-license. The latest version of this library also accepts the British version of the license file name (see: https://github.com/ryanuber/go-license/blob/master/license.go#L40).

It would be nice, if wwhrd could be updated to use the newest version of go-license.

I offer to provide a PR for this, but I was not able to find out, what you are using to manage the vendor/ folder. Maybe this is the time to switch to Go modules and solve #22 at the same time. I can help with that as well.

[frapposelli]

Very good point, I'll make the necessary changes to fix this.

[frapposelli]

Version v0.2.2 is now available 😄

[breml]

@frapposelli Thank you very much for your fast fix, I will give it a try tomorrow.