Remove trailing whitespace.
diff --git a/Doc/library/turtle.rst b/Doc/library/turtle.rst
index 5f9bf18..3155d87 100644
--- a/Doc/library/turtle.rst
+++ b/Doc/library/turtle.rst
@@ -1587,7 +1587,7 @@
 
    Subclass of TurtleScreen, with :ref:`four methods added <screenspecific>`.
 
-   
+
 .. class:: ScrolledCavas(master)
 
    :param master: some Tkinter widget to contain the ScrolledCanvas, i.e.
@@ -1612,13 +1612,13 @@
    "compound"  ``None`` (a compund shape has to be constructed using the
                :meth:`addcomponent` method)
    =========== ===========
-                
+
    .. method:: addcomponent(poly, fill, outline=None)
 
       :param poly: a polygon, i.e. a tuple of pairs of numbers
       :param fill: a color the *poly* will be filled with
       :param outline: a color for the poly's outline (if given)
-     
+
       Example:
 
       >>> poly = ((0,0),(10,-5),(0,10),(-10,-5))
@@ -1662,31 +1662,31 @@
 
      >>> help(Screen.bgcolor)
      Help on method bgcolor in module turtle:
-    
+
      bgcolor(self, *args) unbound turtle.Screen method
          Set or return backgroundcolor of the TurtleScreen.
-    
+
          Arguments (if given): a color string or three numbers
          in the range 0..colormode or a 3-tuple of such numbers.
-    
-    
+
+
            >>> screen.bgcolor("orange")
            >>> screen.bgcolor()
            "orange"
            >>> screen.bgcolor(0.5,0,0.5)
            >>> screen.bgcolor()
            "#800080"
-    
+
      >>> help(Turtle.penup)
      Help on method penup in module turtle:
-    
+
      penup(self) unbound turtle.Turtle method
          Pull the pen up -- no drawing when moving.
-    
+
          Aliases: penup | pu | up
-    
+
          No argument
-    
+
          >>> turtle.penup()
 
 - The docstrings of the functions which are derived from methods have a modified
@@ -1694,32 +1694,32 @@
 
      >>> help(bgcolor)
      Help on function bgcolor in module turtle:
-    
+
      bgcolor(*args)
          Set or return backgroundcolor of the TurtleScreen.
-    
+
          Arguments (if given): a color string or three numbers
          in the range 0..colormode or a 3-tuple of such numbers.
-    
+
          Example::
-    
+
            >>> bgcolor("orange")
            >>> bgcolor()
            "orange"
            >>> bgcolor(0.5,0,0.5)
            >>> bgcolor()
            "#800080"
-    
+
      >>> help(penup)
      Help on function penup in module turtle:
-    
+
      penup()
          Pull the pen up -- no drawing when moving.
-    
+
          Aliases: penup | pu | up
-    
+
          No argument
-    
+
          Example:
          >>> penup()