Set _rotate false on emit 'rotate' false

In some situations the event names includes events with no more listeners. Check the emit return code to see whether it was received instead of checking event names.

lib/winston/transports/file.js

@@ -439,9 +439,8 @@ module.exports = class File extends TransportStream {
       this._dest = this._createStream(this._stream);
       this._opening = false;
       this.once('open', () => {
-        if (this._stream.eventNames().includes('rotate')) {
-          this._stream.emit('rotate');
-        } else {
+        if (!this._stream.emit('rotate'))
+        {
           this._rotate = false;
         }
       });