Fix PR remarks

lib/winappdriver.js

@@ -43,7 +43,7 @@ class WADProcess {
     this.port = opts.port;
     this.executablePath = opts.executablePath;
     this.proc = null;
-    this.forcequit = opts.forcequit;
+    this.isForceQuitEnabled = opts.isForceQuitEnabled;
   }
 
   get isRunning () {
@@ -71,8 +71,9 @@ class WADProcess {
 
     const args = [`${this.port}${this.base}`];
 
-    if (this.forcequit)
+    if (this.isForceQuitEnabled) {
       args.push('/forcequit');
+    }
 
     this.proc = new SubProcess(this.executablePath, args, {
       encoding: 'ucs2'
@@ -125,14 +126,14 @@ class WinAppDriver {
 
   async start (caps) {
     const executablePath = await getWADExecutablePath();
-    const forcequit =  caps["ms:forcequit"] === true;
+    const isForceQuitEnabled = caps['ms:forcequit'] === true;
 
     this.process = new WADProcess(this.log, {
       // XXXYD TODO: would be better if WinAppDriver didn't require passing in /wd/hub as a param
       base: DEFAULT_BASE_PATH,
       port: this.proxyPort,
-      executablePath: executablePath,
-      forcequit: forcequit
+      executablePath,
+      isForceQuitEnabled
     });
     await this.process.start();