Fix another typo.
diff --git a/Lib/doctest.py b/Lib/doctest.py
index 7160907..bdd284a 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -1562,7 +1562,7 @@
 
     - test: the DocTest object being run
 
-    - excample: the Example object that failed
+    - example: the Example object that failed
 
     - got: the actual output
     """