Fixed travis test failing for older versions of go

[teddy-codes]

Older versions of go were making tests fail due to golint.
Post v1.6 of go, golint changed to an official repo.

Error before change:

golang.org/x/tools/go/internal/gcimporter
../../../golang.org/x/tools/go/internal/gcimporter/bexport.go:212: obj.IsAlias undefined (type *types.TypeName has no field or method IsAlias)
The command "go get -v golang.org/x/lint/golint" failed and exited with 2 during .

pre v1.9, this method was not present.
References:

• golang linter install failing during docker image build golang/go#28291 (comment)
• fix for golang linter install failing during docker image build golang/tools#52 (comment)

[iopred]

Does this ignore the result of golint now?

[teddy-codes]

Hm, good point. I will see if I can do something regarding this. If you have a look at the conversation, it is simply a problem with older versions of go (since the function that is causing the error was introduced in v1.9)

[teddy-codes]

I do think that this should be "optional" though

[iopred]

So I'm happy for lint to not fail, I just want gofmt to be enforced, if we add a format check that would be fine too.

[teddy-codes]

I am thinking to add a bash script with this regex for go version: go[1-9].[1-9]?[0-9].[0-9]

[teddy-codes]

It will have to be updated upon version update though...

[iopred]

Thank you so much!