refactor(installer): finish replacing sudo-prompt with electron-sudo

package.json

@@ -82,7 +82,6 @@
     "pify": "^2.3.0",
     "resolve-package": "^1.0.1",
     "semver": "^5.3.0",
-    "sudo-prompt": "^6.2.1",
     "username": "^2.2.2",
     "yarn-or-npm": "^2.0.2",
     "zip-folder": "^1.0.0"

src/installers/darwin/zip.js

@@ -2,7 +2,7 @@ import fs from 'fs-promise';
 import inquirer from 'inquirer';
 import path from 'path';
 import pify from 'pify';
-import sudo from 'sudo-prompt';
+import { default as Sudoer } from 'electron-sudo';
 import { exec, spawn } from 'child_process';
 
 export default async (filePath, installSpinner) => {
@@ -44,9 +44,8 @@ export default async (filePath, installSpinner) => {
   if (writeAccess) {
     await pify(exec)(moveCommand);
   } else {
-    await pify(sudo.exec)(moveCommand, {
-      name: 'Electron Forge',
-    });
+    const sudoer = new Sudoer({ name: 'Electron Forge' });
+    await sudoer.exec(moveCommand);
   }
 
   spawn('open', ['-R', targetApplicationPath], { detached: true });