Minor refactoring

Author: junekimdev

codegen-util.js

@@ -22,13 +22,13 @@ const readline = require('readline');
  * @returns {Promise<string>}
  */
 const askQuestion = (query) => {
-  const rl = readline.createInterface({
+  const interface = readline.createInterface({
     input: process.stdin,
     output: process.stdout,
   });
   return new Promise((resolve) =>
-    rl.question(query, (ans) => {
-      rl.close();
+    interface.question(`${query} `, (ans) => {
+      interface.close();
       resolve(ans);
     }),
   );