Update filters.py

Fixed cut n pasted get_ordering docstring for ya bro.

rest_framework/filters.py

@@ -109,8 +109,7 @@ class OrderingFilter(BaseFilterBackend):
 
     def get_ordering(self, request):
         """
-        Search terms are set by a ?search=... query parameter,
-        and may be comma and/or whitespace delimited.
+        Ordering is set by a comma delimited ?ordering=... query parameter.
         """
         params = request.QUERY_PARAMS.get(self.ordering_param)
         if params: