refactor: move from io/ioutil to io and os package

The io/ioutil package has been deprecated in Go 1.16. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/pkg/stack/stackdump_test.go b/pkg/stack/stackdump_test.go
index ae58ba0a89..b40c560e7e 100644
--- a/pkg/stack/stackdump_test.go
+++ b/pkg/stack/stackdump_test.go
@@ -1,7 +1,6 @@
 package stack // import "github.com/docker/docker/pkg/stack"
 
 import (
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -14,12 +13,12 @@ func TestDump(t *testing.T) {
 }
 
 func TestDumpToFile(t *testing.T) {
-	directory, err := ioutil.TempDir("", "test-dump-tasks")
+	directory, err := os.MkdirTemp("", "test-dump-tasks")
 	assert.Check(t, err)
 	defer os.RemoveAll(directory)
 	dumpPath, err := DumpToFile(directory)
 	assert.Check(t, err)
-	readFile, _ := ioutil.ReadFile(dumpPath)
+	readFile, _ := os.ReadFile(dumpPath)
 	fileData := string(readFile)
 	assert.Check(t, is.Contains(fileData, "goroutine"))
 }