wifiNetworks() bug fixes

lib/index.js

@@ -351,7 +351,7 @@ exports.networkInterfaces = network.networkInterfaces;
 exports.networkStats = network.networkStats;
 exports.networkConnections = network.networkConnections;
 
-exports.wifi = wifi.wifi;
+exports.wifiNetworks = wifi.wifiNetworks;
 
 exports.services = processes.services;
 exports.processes = processes.processes;

lib/wifi.js

@@ -171,7 +171,7 @@ function wifiNetworks(callback) {
                       wpaFlags = wpaFlags.concat(parts[1].replace(')', '').split(','));
                     }
                   });
-                  wpaFlags = [...new Set(wpaFlags)];
+                  wpaFlags = Array.from(new Set(wpaFlags));
                   result.push({
                     ssid: line.substring(parsedhead[0].from, parsedhead[0].to).trim(),
                     bssid: line.substring(parsedhead[1].from, parsedhead[1].to).trim(),