Fix test for parenthesised future imports

This now fails if the fix in the previous commit is reverted

Author: takluyver

tests/test_future_behaviour.py

@@ -112,11 +112,12 @@ def test_problematic_file():
 """)
 
 FUTURE_IMPORT_PAREN = ("""\
-from __future__ import (print_function, division)
-print("abc")
+from __future__ import (absolute_import, division, print_function)
+unicode("abc")
 """, """\
-from __future__ import (print_function, division)
-print("abc")
+from __future__ import (absolute_import, division, print_function)
+import six
+six.text_type("abc")
 """
 )