fix long fixer docs (#4590)
diff --git a/Doc/library/2to3.rst b/Doc/library/2to3.rst
index d07aaa1..97e692f 100644
--- a/Doc/library/2to3.rst
+++ b/Doc/library/2to3.rst
@@ -264,8 +264,7 @@
 
 .. 2to3fixer:: long
 
-   Strips the ``L`` prefix on long literals and renames :class:`long` to
-   :class:`int`.
+   Renames :class:`long` to :class:`int`.
 
 .. 2to3fixer:: map