With this code:

package main

func Do() error {
        return nil
}

func main() {
        Do()
}


I would like go vet to warn me that in the Do() call I'm implicitly ignoring the
returned error. This makes sense since if Do returned anything else than the error I
would be forced to explicitly ignore the error (or handle it).

I understand this could be very noisy for fmt.*, so that package may be completely
blacklisted from the check. On the other hand, this feature could avoid some common
errors while using third party libs.