refactor: resolve close promise with void

Author: NotSugden

src/transports/ipc.js

@@ -128,9 +128,13 @@ class IPCTransport extends EventEmitter {
               return;
             }
             if (data.cmd === 'AUTHORIZE' && data.evt !== 'ERROR') {
-              findEndpoint().then((endpoint) => {
-                this.client.request.endpoint = endpoint;
-              }).catch((error) => this.client.emit('error', error));
+              findEndpoint()
+                .then((endpoint) => {
+                  this.client.request.endpoint = endpoint;
+                })
+                .catch((error) => {
+                  this.client.emit('error', error);
+                });
             }
             this.emit('message', data);
             break;
@@ -144,17 +148,19 @@ class IPCTransport extends EventEmitter {
     });
   }
 
-  onClose(e) {
-    this.emit('close', e);
+  onClose(event) {
+    this.emit('close', event);
   }
 
   send(data, op = OPCodes.FRAME) {
     this.socket.write(encode(op, data));
   }
 
   async close() {
-    return new Promise((r) => {
-      this.once('close', r);
+    return new Promise((resolve) => {
+      this.once('close', () => {
+        resolve();
+      });
       this.send({}, OPCodes.CLOSE);
       this.socket.end();
     });