replace ioutil with io package and other minor improvements

_examples/file-server/http2push-embedded/bindata.go

@@ -1,6 +1,6 @@
 // Code generated by go-bindata. (@generated) DO NOT EDIT.
 
-//Package main generated by go-bindata.// sources:
+// Package main generated by go-bindata.// sources:
 // ../http2push/assets/app2/app2app3/css/main.css
 // ../http2push/assets/app2/app2app3/dirs/dir1/text.txt
 // ../http2push/assets/app2/app2app3/dirs/dir2/text.txt
@@ -19,7 +19,6 @@ import (
 	"compress/gzip"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -464,11 +463,13 @@ var _bindata = map[string]func() (*asset, error){
 // directory embedded in the file by go-bindata.
 // For example if you run go-bindata on data/... and data contains the
 // following hierarchy:
-//     data/
-//       foo.txt
-//       img/
-//         a.png
-//         b.png
+//
+//	data/
+//	  foo.txt
+//	  img/
+//	    a.png
+//	    b.png
+//
 // then AssetDir("data") would return []string{"foo.txt", "img"}
 // AssetDir("data/img") would return []string{"a.png", "b.png"}
 // AssetDir("foo.txt") and AssetDir("notexist") would return an error
@@ -546,7 +547,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+	err = os.WriteFile(_filePath(dir, name), data, info.Mode())
 	if err != nil {
 		return err
 	}