fix unmount

wrap.go

@@ -172,11 +172,14 @@ func (g *gfw) Mount() error {
 }
 
 func (g *gfw) Unmount() error {
+	fmt.Println("Canceling...")
 	g.cancel()
-	g.conn.Close()
+	fmt.Println("Unmounting...")
 	if err := fuse.Unmount(g.mountpoint); err != nil {
 		return err
 	}
+	fmt.Println("Closing...")
+	g.conn.Close()
 	return os.Remove(g.mountpoint)
 }