Fix Windows buildbot failures after r66469.

Lib/test/test_os.py

@@ -69,7 +69,8 @@ class FileTests(unittest.TestCase):
         os.write(fd, memoryview(b"spam\n"))
         os.close(fd)
         with open(support.TESTFN, "rb") as fobj:
-            self.assertEqual(fobj.read(), b"bacon\neggs\nspam\n")
+            self.assertEqual(fobj.read().splitlines(),
+                [b"bacon", b"eggs", b"spam"])
 
 
 class TemporaryFileTests(unittest.TestCase):

Lib/test/test_tempfile.py

@@ -314,7 +314,7 @@ class test__mkstemp_inner(TC):
         if not has_textmode:
             return            # ugh, can't use TestSkipped.
 
-        self.do_create(bin=0).write("blat\n")
+        self.do_create(bin=0).write(b"blat\n")
         # XXX should test that the file really is a text file
 
 test_classes.append(test__mkstemp_inner)