Try to restore the old test_file and test_univnewlines as new, different files
(with the right revisions this time, hopefully)
diff --git a/Lib/test/test_univnewlines.py b/Lib/test/test_univnewlines.py
index 1f7352a..a0a9090 100644
--- a/Lib/test/test_univnewlines.py
+++ b/Lib/test/test_univnewlines.py
@@ -1,5 +1,8 @@
# Tests universal newline support for both reading and parsing files.
+# NOTE: this file tests the new `io` library backported from Python 3.x.
+# Similar tests for the builtin file object can be found in test_univnewlines2k.py.
+
from __future__ import print_function
from __future__ import unicode_literals