code cleanup

lib/util.js

@@ -757,7 +757,7 @@ function decodePiCpuinfo(lines) {
   const serial = getValue(lines, 'serial', ':', true);
 
   let result = {};
-  if (oldRevisionCodes.hasOwnProperty(revisionCode)) {
+  if ({}.hasOwnProperty.call(oldRevisionCodes, revisionCode)) {
     // old revision codes
     result = {
       model,
@@ -787,7 +787,7 @@ function decodePiCpuinfo(lines) {
       memory: 256 * Math.pow(2, memSizeCode),
       manufacturer,
       processor,
-      type: typeList.hasOwnProperty(typeCode) ? typeList[typeCode] : '',
+      type: {}.hasOwnProperty.call(typeList, typeCode) ? typeList[typeCode] : '',
       revision: '1.' + revision.substr(7, 1),
     }
   }