Trim trailing space unittests directory

unittests/test_htmllbox.py

@@ -13,16 +13,16 @@ class htmllbox_Tests(wtc.WidgetTestCase):
     def test_htmllbox2(self):
         lb = wx.html.SimpleHtmlListBox()
         lb.Create(self.frame, choices=['one', 'two', 'three'])
-        
+
     def test_htmllbox3(self):
         class MyHtmlListBox(wx.html.HtmlListBox):
             def OnGetItem(self, n):
                 return 'this is item <b>%d</b>' % n
-            
+
         lb = MyHtmlListBox(self.frame)
         lb.SetItemCount(15)
-        
-        
+
+
 #---------------------------------------------------------------------------
 
 if __name__ == '__main__':