use await in conky-bat

conky-bat/index.js

@@ -3,7 +3,9 @@
 
 var linuxBattery = require('linux-battery');
 
-linuxBattery().then(batteries => {
+async function run() {
+    try {
+        const batteries = await linuxBattery();
         batteries.forEach(battery => {
             var color = battery.warningLevel !== 'none' ? '#ff0000' : '#eee8d5';
             var stateSymbol = battery.state === 'charging' ? '↑' : '↓';
@@ -25,4 +27,9 @@ linuxBattery().then(batteries => {
             var text = `%{F${color}}${battery.percentage} ${stateSymbol} ${timeLeft}%{F-}`;
             process.stdout.write(text);
         });
-});
+    } catch (error) {
+        console.error(error);
+    }
+}
+
+run();