restored Node 4.x compatibility

lib/graphics.js

@@ -728,7 +728,7 @@ function graphics(callback) {
               const nvidiaData = nvidiaDevices();
               // needs to be rewritten ... using no spread operators
               result.controllers = result.controllers.map((controller) => { // match by busAddress
-                return mergeControllerNvidia(controller, nvidiaData.find(({ pciBus }) => pciBus.toLowerCase().endsWith(controller.busAddress.toLowerCase())) || {});
+                return mergeControllerNvidia(controller, nvidiaData.find((controller) => controller.pciBus.toLowerCase().endsWith(controller.busAddress.toLowerCase())) || {});
               });
             }
             let cmd = 'clinfo --raw';

lib/network.js

@@ -683,12 +683,15 @@ function testVirtualNic(iface, ifaceName, mac) {
   } else { return false; }
 }
 
-function networkInterfaces(callback, rescan = true) {
+function networkInterfaces(callback, rescan) {
 
   if (typeof callback === 'boolean') {
     rescan = callback;
     callback = null;
   }
+  if (typeof rescan === 'undefined') {
+    rescan = true;
+  }
   return new Promise((resolve) => {
     process.nextTick(() => {
       let ifaces = os.networkInterfaces();

lib/util.js

@@ -540,7 +540,8 @@ function countLines(lines, startingWith) {
   return uniqueLines.length;
 }
 
-function sanitizeShellString(str, strict = false) {
+function sanitizeShellString(str, strict) {
+  if (typeof strict === 'undefined') { strict = false; }
   const s = str || '';
   let result = '';
   for (let i = 0; i <= mathMin(s.length, 2000); i++) {