Patch #734231: Update RiscOS support. In particular, correct
riscospath.extsep, and use os.extsep throughout.
diff --git a/Lib/test/test_shelve.py b/Lib/test/test_shelve.py
index 8ef511e..f852be5 100644
--- a/Lib/test/test_shelve.py
+++ b/Lib/test/test_shelve.py
@@ -6,7 +6,7 @@
 
 class TestCase(unittest.TestCase):
 
-    fn = "shelftemp.db"
+    fn = "shelftemp" + os.extsep + "db"
 
     def test_ascii_file_shelf(self):
         try: