To get the package, execute:
go get gopkg.in/alecthomas/kingpin.v0/commit/7f0871f2e17818990e4eed73f9b5c2f429501228
To import this package, add the following line to your code:
import "gopkg.in/alecthomas/kingpin.v0/commit/7f0871f2e17818990e4eed73f9b5c2f429501228"
For more details, see the API documentation.