Replace deprecated ioutil with io and os

https://pkg.go.dev/io/ioutil is deprecated since Go 1.16.

commands/hugo.go

@@ -18,7 +18,7 @@ package commands
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -138,10 +138,10 @@ func initializeConfig(mustHaveConfigFile, failOnInitErr, running bool,
 
 func (c *commandeer) createLogger(cfg config.Provider) (loggers.Logger, error) {
 	var (
-		logHandle       = ioutil.Discard
+		logHandle       = io.Discard
 		logThreshold    = jww.LevelWarn
 		logFile         = cfg.GetString("logFile")
-		outHandle       = ioutil.Discard
+		outHandle       = io.Discard
 		stdoutThreshold = jww.LevelWarn
 	)
 
@@ -157,7 +157,7 @@ func (c *commandeer) createLogger(cfg config.Provider) (loggers.Logger, error) {
 				return nil, newSystemError("Failed to open log file:", logFile, err)
 			}
 		} else {
-			logHandle, err = ioutil.TempFile("", "hugo")
+			logHandle, err = os.CreateTemp("", "hugo")
 			if err != nil {
 				return nil, newSystemError(err)
 			}