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/compiler/future.py

@@ -65,9 +65,9 @@ if __name__ == "__main__":
     from compiler import parseFile, walk
 
     for file in sys.argv[1:]:
-        print file
+        print(file)
         tree = parseFile(file)
         v = FutureParser()
         walk(tree, v)
-        print v.found
-        print
+        print(v.found)
+        print()