code: func configureEnvironmentForInstall() {
  	if config.Update {
  		warning(`Linters are now vendored by default, --update ignored. The original
  behaviour can be re-enabled with --no-vendored-linters.
  
  To request an update for a vendored linter file an issue at:
  https://github.com/alecthomas/gometalinter/issues/new
  `)
  	}
  	gopaths := getGoPathList()
  	vendorRoot := findVendoredLinters()
  	if vendorRoot == "" {
  		kingpin.Fatalf("could not find vendored linters in GOPATH=%q", getGoPath())
  	}
  	debug("found vendored linters at %s, updating environment", vendorRoot)
  
  	gobin := os.Getenv("GOBIN")
  	if gobin == "" {
  		gobin = filepath.Join(gopaths[0], "bin")
  	}
  	setEnv("GOBIN", gobin)
  
  	// "go install" panics when one GOPATH element is beneath another, so set
  	// GOPATH to the vendor root
  	setEnv("GOPATH", vendorRoot)
  	debugPrintEnv()
  }
docs: // configureEnvironmentForInstall sets GOPATH and GOBIN so that vendored linters
  // can be installed