inetLatency() Windows fix parse chinese output

lib/internet.js

@@ -160,10 +160,10 @@ function inetLatency(host, callback) {
               let lines = stdout.toString().split('\r\n');
               lines.shift();
               lines.forEach(function (line) {
-                if (line.toLowerCase().indexOf('ms,') > -1) {
+                if ((line.toLowerCase().match(/ms/g) || []).length === 3) {
                   let l = line.replace(/ +/g, ' ').split(' ');
-                  if (l.length > 8) {
-                    result = parseFloat(l[9]);
+                  if (l.length > 6) {
+                    result = parseFloat(l[l.length - 1]);
                   }
                 }
               });

lib/util.js

@@ -220,7 +220,7 @@ function powerShell(cmd) {
 
   let result = '';
 
-  return new Promise((resolve, reject) => {
+  return new Promise((resolve) => {
     process.nextTick(() => {
       try {
         const child = spawn('powershell.exe', ['-NoLogo', '-InputFormat', 'Text', '-NoExit', '-ExecutionPolicy', 'Unrestricted', '-Command', '-'], {
@@ -231,7 +231,7 @@ function powerShell(cmd) {
           child.stdout.on('data', function (data) {
             result = result + data.toString('utf8');
           });
-          child.stderr.on('data', function (data) {
+          child.stderr.on('data', function () {
             child.kill();
             resolve(result);
           });
@@ -246,7 +246,7 @@ function powerShell(cmd) {
           try {
             child.stdin.write(cmd + os.EOL);
             child.stdin.write('exit' + os.EOL);
-            child.stdin.end()
+            child.stdin.end();
           } catch (e) {
             child.kill();
             resolve(result);
@@ -260,6 +260,7 @@ function powerShell(cmd) {
     });
   });
 }
+
 function getCodepage() {
   if (_windows) {
     if (!codepage) {