Fixes per redis 6 changes (#30)

Author: filipecosta90

Makefile

@@ -25,7 +25,7 @@ get:
 
 test: get
 	$(GOFMT) ./...
-	$(GOTEST) -count 1 -race -covermode=atomic ./...
+	$(GOTEST) -count 1 ./...
 
 coverage: get test
 	$(GOTEST) -race -coverprofile=coverage.txt -covermode=atomic .

client_test.go

@@ -71,7 +71,7 @@ func TestReserve(t *testing.T) {
 		"Expansion rate":           2,
 		"Number of filters":        1,
 		"Number of items inserted": 0,
-		"Size":                     932,
+		"Size":                     936,
 	})
 
 	err = client.Reserve(key, 0.1, 1000)