Raise statement normalization in Lib/test/.
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 718f7b2..ab0e1d0 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -811,7 +811,7 @@
 
     >>> def f(x):
     ...     r'''
-    ...     >>> raise ValueError, 'multi\nline\nmessage'
+    ...     >>> raise ValueError('multi\nline\nmessage')
     ...     Traceback (most recent call last):
     ...     ValueError: multi
     ...     line
@@ -826,7 +826,7 @@
 
     >>> def f(x):
     ...     r'''
-    ...     >>> raise ValueError, 'message'
+    ...     >>> raise ValueError('message')
     ...     Traceback (most recent call last):
     ...     ValueError: wrong message
     ...     '''
@@ -836,7 +836,7 @@
     **********************************************************************
     File ..., line 3, in f
     Failed example:
-        raise ValueError, 'message'
+        raise ValueError('message')
     Expected:
         Traceback (most recent call last):
         ValueError: wrong message
@@ -851,7 +851,7 @@
 
     >>> def f(x):
     ...     r'''
-    ...     >>> raise ValueError, 'message' #doctest: +IGNORE_EXCEPTION_DETAIL
+    ...     >>> raise ValueError('message') #doctest: +IGNORE_EXCEPTION_DETAIL
     ...     Traceback (most recent call last):
     ...     ValueError: wrong message
     ...     '''
@@ -863,7 +863,7 @@
 
     >>> def f(x):
     ...     r'''
-    ...     >>> raise ValueError, 'message' #doctest: +IGNORE_EXCEPTION_DETAIL
+    ...     >>> raise ValueError('message') #doctest: +IGNORE_EXCEPTION_DETAIL
     ...     Traceback (most recent call last):
     ...     TypeError: wrong type
     ...     '''
@@ -873,7 +873,7 @@
     **********************************************************************
     File ..., line 3, in f
     Failed example:
-        raise ValueError, 'message' #doctest: +IGNORE_EXCEPTION_DETAIL
+        raise ValueError('message') #doctest: +IGNORE_EXCEPTION_DETAIL
     Expected:
         Traceback (most recent call last):
         TypeError: wrong type