filter/count: Fix alignment on 32-bit systems.

filter/count/rds.go

Index: filter/count/rds.go
diff --git a/filter/count/rds.go b/filter/count/rds.go
index 5e40b6f758ec3752c4e338d15916443420b61a61..86c8f5e6f935cef79229c488c7e73e9bf7d5b18d 100644
--- a/filter/count/rds.go
+++ b/filter/count/rds.go
@@ -78,6 +78,16 @@ func (r *dsCounter) Testable() ds.Testable {
 // FilterRDS installs a counter datastore filter in the context.
 func FilterRDS(c context.Context) (context.Context, *DSCounter) {
 	state := &DSCounter{}
+	state.NewKey.init()
+	state.DecodeCursor.init()
+	state.DecodeKey.init()
+	state.NewQuery.init()
+	state.RunInTransaction.init()
+	state.Run.init()
+	state.DeleteMulti.init()
+	state.GetMulti.init()
+	state.PutMulti.init()
+
 	return ds.AddRawFilters(c, func(ic context.Context, ds ds.RawInterface) ds.RawInterface {
 		return &dsCounter{state, ds}
 	}), state