diagnostic tool fixes

engine/items/itemprops/material.go

@@ -1,13 +1,13 @@
 package itemprops
 
 import (
-    "encoding/json"
-    "fmt"
-    "github.com/rs/zerolog"
-    "io/ioutil"
-    "os"
-    "path/filepath"
-    "strings"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/rs/zerolog"
 )
 
 type Material struct {
@@ -50,7 +50,7 @@ func NewMaterialMap(path string, logger zerolog.Logger) (MaterialMap, error) {
             if strings.HasSuffix(path, ".json") {
                 splt := strings.Split(path, "/")
                 logger.Info().Msgf("loading %s %d", splt[len(splt)-1], info.Size())
-                bytes, err := ioutil.ReadFile(path)
+                bytes, err := os.ReadFile(path)
                 if err != nil {
                     return err
                 }
@@ -60,7 +60,7 @@ func NewMaterialMap(path string, logger zerolog.Logger) (MaterialMap, error) {
                 if err != nil {
                     return err
                 }
-                for idx, _ := range ttmp {
+                for idx := range ttmp {
                     tmp[idx] = append(tmp[idx], ttmp[idx]...)
                 }
             }