method documentation typo fix

diff --git a/lib/sqlalchemy/sql/elements.py b/lib/sqlalchemy/sql/elements.py
index c1c4fc1e159dc78e3333f42f8948f6e012ec6b68..53838358d1779105973a212b71149a21e875db29 100644 (file)
--- a/lib/sqlalchemy/sql/elements.py
+++ b/lib/sqlalchemy/sql/elements.py
@@ -2901,7 +2901,7 @@ class FunctionFilter(ColumnElement):
     criterion = None
 
     def __init__(self, func, *criterion):
-        """Produce an :class:`.FunctionFilter` object against a function.
+        """Produce a :class:`.FunctionFilter` object against a function.
 
         Used against aggregate and window functions,
         for database backends that support the "FILTER" clause.