Fixes somes missing import in tests.

Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>

Author: cyriltovena

loki/client_test.go

@@ -13,6 +13,8 @@ import (
 "github.com/stretchr/testify/require"
 
 "github.com/grafana/loki-client-go/pkg/backoff"
+"github.com/grafana/loki-client-go/pkg/httputil"
+"github.com/grafana/loki-client-go/pkg/labelutil"
 "github.com/grafana/loki-client-go/pkg/urlutil"
 "github.com/prometheus/client_golang/prometheus"
 "github.com/prometheus/client_golang/prometheus/testutil"
@@ -22,16 +24,14 @@ import (
 "github.com/grafana/loki-client-go/pkg/logproto"
 )
 
-var (
-logEntries = []entry{
-{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(1, 0).UTC(), Line: "line1"}},
-{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(2, 0).UTC(), Line: "line2"}},
-{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(3, 0).UTC(), Line: "line3"}},
-{labels: model.LabelSet{"__tenant_id__": "tenant-1"}, Entry: logproto.Entry{Timestamp: time.Unix(4, 0).UTC(), Line: "line4"}},
-{labels: model.LabelSet{"__tenant_id__": "tenant-1"}, Entry: logproto.Entry{Timestamp: time.Unix(5, 0).UTC(), Line: "line5"}},
-{labels: model.LabelSet{"__tenant_id__": "tenant-2"}, Entry: logproto.Entry{Timestamp: time.Unix(6, 0).UTC(), Line: "line6"}},
-}
-)
+var logEntries = []entry{
+{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(1, 0).UTC(), Line: "line1"}},
+{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(2, 0).UTC(), Line: "line2"}},
+{labels: model.LabelSet{}, Entry: logproto.Entry{Timestamp: time.Unix(3, 0).UTC(), Line: "line3"}},
+{labels: model.LabelSet{"__tenant_id__": "tenant-1"}, Entry: logproto.Entry{Timestamp: time.Unix(4, 0).UTC(), Line: "line4"}},
+{labels: model.LabelSet{"__tenant_id__": "tenant-1"}, Entry: logproto.Entry{Timestamp: time.Unix(5, 0).UTC(), Line: "line5"}},
+{labels: model.LabelSet{"__tenant_id__": "tenant-2"}, Entry: logproto.Entry{Timestamp: time.Unix(6, 0).UTC(), Line: "line6"}},
+}
 
 type receivedReq struct {
 tenantID string