Bumping k8s dependencies to 1.13

vendor/golang.org/x/tools/cmd/fiximports/main.go

@@ -491,15 +491,18 @@ func list(args ...string) ([]*listPackage, error) {
 	return pkgs, nil
 }
 
-var cwd string
-
-func init() {
-	var err error
-	cwd, err = os.Getwd()
+// cwd contains the current working directory of the tool.
+//
+// It is initialized directly so that its value will be set for any other
+// package variables or init functions that depend on it, such as the gopath
+// variable in main_test.go.
+var cwd string = func() string {
+	cwd, err := os.Getwd()
 	if err != nil {
 		log.Fatalf("os.Getwd: %v", err)
 	}
-}
+	return cwd
+}()
 
 // shortPath returns an absolute or relative name for path, whatever is shorter.
 // Plundered from $GOROOT/src/cmd/go/build.go.

vendor/golang.org/x/tools/cmd/fiximports/main_test.go

@@ -10,6 +10,7 @@ package main
 
 import (
 	"bytes"
+	"log"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -32,11 +33,25 @@ import (
 // titanic.biz/bar	-- domain is sinking; package has jumped ship to new.com/bar
 // titanic.biz/foo	-- domain is sinking but package has no import comment yet
 
-func TestFixImports(t *testing.T) {
-	gopath := filepath.Join(cwd, "testdata")
+var gopath = filepath.Join(cwd, "testdata")
+
+func init() {
 	if err := os.Setenv("GOPATH", gopath); err != nil {
-		t.Fatalf("os.Setenv: %v", err)
+		log.Fatal(err)
 	}
+
+	// This test currently requires GOPATH mode.
+	// Explicitly disabling module mode should suffix, but
+	// we'll also turn off GOPROXY just for good measure.
+	if err := os.Setenv("GO111MODULE", "off"); err != nil {
+		log.Fatal(err)
+	}
+	if err := os.Setenv("GOPROXY", "off"); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func TestFixImports(t *testing.T) {
 	defer func() {
 		stderr = os.Stderr
 		*badDomains = "code.google.com"
@@ -224,11 +239,6 @@ import (
 
 // TestDryRun tests that the -n flag suppresses calls to writeFile.
 func TestDryRun(t *testing.T) {
-	gopath := filepath.Join(cwd, "testdata")
-	if err := os.Setenv("GOPATH", gopath); err != nil {
-		t.Fatalf("os.Setenv: %v", err)
-	}
-
 	*dryrun = true
 	defer func() { *dryrun = false }() // restore
 	stderr = new(bytes.Buffer)