Fixing #8

Author: jjgonecrypto

lib/index.js

@@ -39,14 +39,14 @@ piano.draw().on('end', () => {
         if (err && err.code !== 'ENOENT') {
             return console.error(err)
         } else if (err) {
-            return fs.writeFile(err.path, '', 0, 0)
+            return fs.writeFileSync(err.path, '')
         }
         data.toString().split('\n').reverse().filter(line => line.trim()).map(line => replServer.history.push(line))
     })
 
     // append history on exit
     replServer.on('exit', () => {
-        fs.appendFile(historyFile, replServer.lines.filter(l => l.replace(/\n/,'').length).join('\n') + '\n')
+        fs.appendFileSync(historyFile, replServer.lines.filter(l => l.replace(/\n/,'').length).join('\n') + '\n')
     })
 
     replServer.defineCommand('keyboard', {