Issue 7911: unittest.TestCase.longMessage defaults to True for improved failure messages by default
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index db6c53f..2b9c2be 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -1305,8 +1305,8 @@
to ``True`` allows you to have a custom error message in addition to the
normal one.
- This attribute defaults to ``False``, meaning that a custom message passed
- to an assert method will silence the normal message.
+ This attribute defaults to ``True``. If set to False then a custom message
+ passed to an assert method will silence the normal message.
The class setting can be overridden in individual tests by assigning an
instance attribute to ``True`` or ``False`` before calling the assert methods.