Fix: clean up code

setup.js

@@ -37,14 +37,12 @@ console.log('');
 console.log(nodeModulesDirs);
 console.log('');
 
-
-let dir;
-for (dir in nodeModulesDirs) {
+for (let dir of nodeModulesDirs) {
     // Loop through directories and run npm ci in a child process shell.
-    let command = "echo Results of install at "+ nodeModulesDirs[dir] + " & npm ci";
+    let command = "echo Results of install at "+ dir + " & npm ci";
     exec( command,
         {
-            cwd: nodeModulesDirs[dir] 
+            cwd: dir 
         },
         function ( error, stdout ){
             if (error) {