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.)
diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index 02215e5..6abfb90 100755
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -975,7 +975,7 @@
             test_support.run_unittest(*tests)
             gc.collect()
             counts[i] = sys.gettotalrefcount()
-        print counts
+        print(counts)
 
 if __name__ == "__main__":
     test_main(verbose=True)