fix typo in mapper doc string

Change-Id: I10fd7bdb0f0564a5beadfe3fa9fbb7e5ea88362c
(cherry picked from commit 74a8e2ced922183d6ad072eced904cb989113fa2)

diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py
index 06e3884be63844ceb7b62e210b0c6bb8b88454b1..5bb203b3a928aac1ee292581fcbdfed88cc0bcc7 100644 (file)
--- a/lib/sqlalchemy/orm/mapper.py
+++ b/lib/sqlalchemy/orm/mapper.py
@@ -442,7 +442,7 @@ class Mapper(
           mapping of the class to an alternate selectable, for loading
           only.
 
-         .. seealso::
+          .. seealso::
 
             :ref:`relationship_aliased_class` - the new pattern that removes
             the need for the :paramref:`_orm.Mapper.non_primary` flag.