Update index.js

index.js

@@ -1,10 +1,12 @@
-const { exec } = require('node:child_process');
-var additional = process.env.INPUT_ADDITIONAL;
-exec('apk add bash git ' + additional, (err, output) => {
-    if (err) {
-        console.log("Something went wrong...");
-        console.log(output);
-    } else {
-        console.log("Successfully installed packages!");
+const { exec } = require('child_process');
+exec('apk add bash git ' + additional, (error, stdout, stderr) => {
+  if (error) {
+    console.error(`Error: ${error.message}`);
+    return;
   }
-})
+  if (stderr) {
+    console.error(`Stderr: ${stderr}`);
+    return;
+  }
+  console.log(`Stdout: ${stdout}`);
+});