add file poller panic fix from 1.10.2

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

filenotify/poller.go

@@ -118,8 +118,6 @@ func (w *filePoller) Close() error {
 		w.remove(name)
 		delete(w.watches, name)
 	}
-	close(w.events)
-	close(w.errors)
 	return nil
 }
 
@@ -146,6 +144,7 @@ func (w *filePoller) sendErr(e error, chClose <-chan struct{}) error {
 // watch is responsible for polling the specified file for changes
 // upon finding changes to a file or errors, sendEvent/sendErr is called
 func (w *filePoller) watch(f *os.File, lastFi os.FileInfo, chClose chan struct{}) {
+	defer f.Close()
 	for {
 		time.Sleep(watchWaitTime)
 		select {