definite restart

snippetbox/cmd/web/main.go

@@ -11,13 +11,19 @@ func main() {
 	addr := flag.String("addr", ":4000", "HTTP network address")
 	flag.Parse()
 	infoLog := log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
+	errorLog := log.New(os.Stderr, "ERROR\t", log.Ldate|log.Ltime|log.Lshortfile)
 	mux := http.NewServeMux()
 	fileServer := http.FileServer(http.Dir("./ui/static/"))
 	mux.Handle("/static/", http.StripPrefix("/static", fileServer))
 	mux.HandleFunc("/", home)
 	mux.HandleFunc("/snippet/view", snippetView)
 	mux.HandleFunc("/snippet/create", snippetCreate)
-	log.Printf("Starting server on %s", *addr)
-	err := http.ListenAndServe(*addr, mux)
-	log.Fatal(err)
+	srv := &http.Server{
+		Addr:     *addr,
+		ErrorLog: errorLog,
+		Handler:  mux,
+	}
+	infoLog.Printf("Starting server on %s", *addr)
+	err := srv.ListenAndServe()
+	errorLog.Fatal(err)
 }