[3.12] Fix print usage in turtle doctests (pythonGH-122940) (python#122978)

Fix `print` usage in `turtle` doctests (pythonGH-122940)
(cherry picked from commit 901d949)

Co-authored-by: sobolevn <[email protected]>

Author: miss-islington

Lib/turtle.py

@@ -1719,7 +1719,7 @@ def xcor(self):
         >>> reset()
         >>> turtle.left(60)
         >>> turtle.forward(100)
-        >>> print turtle.xcor()
+        >>> print(turtle.xcor())
         50.0
         """
         return self._position[0]
@@ -1733,7 +1733,7 @@ def ycor(self):
         >>> reset()
         >>> turtle.left(60)
         >>> turtle.forward(100)
-        >>> print turtle.ycor()
+        >>> print(turtle.ycor())
         86.6025403784
         """
         return self._position[1]
@@ -2336,7 +2336,7 @@ def isvisible(self):
 
         Example (for a Turtle instance named turtle):
         >>> turtle.hideturtle()
-        >>> print turtle.isvisible():
+        >>> print(turtle.isvisible())
         False
         """
         return self._shown