Recently I have started to send some CL to the Go project, and I wanted some tools to check the portability to other platforms and the compatibility to older Go releases of my changes.
With the -first-class option, it is possible to limit the use to only first class ports.
With the -since option, it is possible to limit the use to to only releases more recent than the specified version.
With the -test option, the tool invokes go test, instead of go vet.
Regards
Manlio Perillo