fixup! Subscriptions: Add batching to templates

exchanges/subscription/template.go

@@ -23,7 +23,7 @@ var (
 	errInvalidAssetExpandPairs = errors.New("subscription template containing PairSeparator with must contain either specific Asset or AssetSeparator")
 	errAssetRecords            = errors.New("subscription template did not generate the expected number of asset records")
 	errPairRecords             = errors.New("subscription template did not generate the expected number of pair records")
-	errBatchSize               = errors.New("Invalid BatchSize")
+	errBatchSize               = errors.New("invalid BatchSize")
 	errAssetTemplateWithoutAll = errors.New("sub.Asset must be set to All if AssetSeparator is used in Channel template")
 	errNoTemplateContent       = errors.New("subscription template did not generate content")
 	errInvalidTemplate         = errors.New("GetSubscriptionTemplate did not return a template")