Fix most trivially-findable print statements.

There's one major and one minor category still unfixed:
doctests are the major category (and I hope to be able to augment the
refactoring tool to refactor bona fide doctests soon);
other code generating print statements in strings is the minor category.

(Oh, and I don't know if the compiler package works.)

Lib/code.py

@@ -107,7 +107,7 @@ class InteractiveInterpreter:
             self.showtraceback()
         else:
             if softspace(sys.stdout, 0):
-                print
+                print()
 
     def showsyntaxerror(self, filename=None):
         """Display the syntax error that just occurred.