Final fix on error linting

Signed-off-by: Pedro Tanaka <pedro.tanaka@shopify.com>

pkg/store/tsdb_test.go

@@ -6,13 +6,13 @@ package store
 import (
 	"context"
 	"fmt"
-	"github.com/cespare/xxhash"
 	"io"
 	"math"
 	"math/rand"
 	"sort"
 	"testing"
 
+	"github.com/cespare/xxhash"
 	"github.com/go-kit/log"
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/storage"