bpo-33987: Use ttk Label on IDLE statusbar (GH-22941)

diff --git a/Lib/idlelib/statusbar.py b/Lib/idlelib/statusbar.py
index ae52a56..755fafb 100644
--- a/Lib/idlelib/statusbar.py
+++ b/Lib/idlelib/statusbar.py
@@ -1,5 +1,4 @@
-from tkinter import Label
-from tkinter.ttk import Frame
+from tkinter.ttk import Label, Frame
 
 
 class MultiStatusBar(Frame):