Additional close was added

noolite-cli.go

@@ -22,6 +22,9 @@ func sendCommand(command string, channel, value, r, g, b int) error {
 	n, err := noolite.DefaultNooliteAdapter()
 
 	if err != nil {
+		if n != nil {
+			n.Close()
+		}
 		return err
 	}