fix typo in mapper doc string

Change-Id: I10fd7bdb0f0564a5beadfe3fa9fbb7e5ea88362c

diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py
index b8f2a5a84d4790eb3468f7402e44a50dd473da28..59c8d01145a2e02f1ea7c9cfb91e3a5341741ff8 100644 (file)
--- a/lib/sqlalchemy/orm/mapper.py
+++ b/lib/sqlalchemy/orm/mapper.py
@@ -444,7 +444,7 @@ 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.