Whitespace normalization.
diff --git a/Tools/idle/PathBrowser.py b/Tools/idle/PathBrowser.py
index 7ea2410..86cd270 100644
--- a/Tools/idle/PathBrowser.py
+++ b/Tools/idle/PathBrowser.py
@@ -6,7 +6,7 @@
 from ClassBrowser import ClassBrowser, ModuleBrowserTreeItem
 
 class PathBrowser(ClassBrowser):
-    
+
     def __init__(self, flist):
         self.init(flist)