Fix broken test in test_hotshot.  Treating the current directory as an
empty file is sloppy and non-portable.  Use NamedTemporaryFile to make
an empty file.
diff --git a/Lib/test/test_hotshot.py b/Lib/test/test_hotshot.py
index 35ca6aa..fa6b2f1 100644
--- a/Lib/test/test_hotshot.py
+++ b/Lib/test/test_hotshot.py
@@ -3,6 +3,7 @@
 import os
 import pprint
 import unittest
+import tempfile
 import _hotshot
 import gc
 
@@ -127,7 +128,12 @@
                 os.remove(test_support.TESTFN)
 
     def test_logreader_eof_error(self):
-        self.assertRaises((IOError, EOFError), _hotshot.logreader, ".")
+        emptyfile = tempfile.NamedTemporaryFile()
+        try:
+            self.assertRaises((IOError, EOFError), _hotshot.logreader,
+                              emptyfile.name)
+        finally:
+            emptyfile.close()
         gc.collect()
 
 def test_main():