fix: hasOwnProperty syntax

Author: curbengh

lib/fs.js

@@ -304,7 +304,7 @@ function readFile(path, options = {}, callback) {
     options = {};
   }
 
-  if (!Object.hasOwnProperty(options, 'encoding')) options.encoding = 'utf8';
+  if (!Object.prototype.hasOwnProperty.call(options, 'encoding')) options.encoding = 'utf8';
 
   return readFileAsync(path, options).then(content => {
     if (options.escape == null || options.escape) {
@@ -318,7 +318,7 @@ function readFile(path, options = {}, callback) {
 function readFileSync(path, options = {}) {
   if (!path) throw new TypeError('path is required!');
 
-  if (!Object.hasOwnProperty(options, 'encoding')) options.encoding = 'utf8';
+  if (!Object.prototype.hasOwnProperty.call(options, 'encoding')) options.encoding = 'utf8';
 
   const content = fs.readFileSync(path, options);