Documentation bug?

go version go1.12.5 darwin/amd64

```
Error reading /Users/landivar/go/src/github.com/dr2chase/bent/foo
```
as a result from `bent -I`

I added the step of cloning bent down into my go path which fixed it. It appears `go get https://github.com/dr2chase/bent` didn't doesn't it into the go path on go 1.12.5

