azure: User internal errors package

internal/backend/azure/azure.go

@@ -10,9 +10,9 @@ import (
 	"time"
 
 	"github.com/Azure/azure-sdk-for-go/storage"
-	"github.com/pkg/errors"
 	"github.com/restic/restic/internal/backend"
 	"github.com/restic/restic/internal/debug"
+	"github.com/restic/restic/internal/errors"
 	"github.com/restic/restic/internal/restic"
 )
 

internal/backend/azure/azure_test.go

@@ -2,7 +2,6 @@ package azure_test
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"os"
 	"testing"
@@ -10,6 +9,7 @@ import (
 
 	"github.com/restic/restic/internal/backend/azure"
 	"github.com/restic/restic/internal/backend/test"
+	"github.com/restic/restic/internal/errors"
 	"github.com/restic/restic/internal/restic"
 	. "github.com/restic/restic/internal/test"
 )

internal/backend/azure/config.go

@@ -1,10 +1,10 @@
 package azure
 
 import (
-	"errors"
 	"path"
 	"strings"
 
+	"github.com/restic/restic/internal/errors"
 	"github.com/restic/restic/internal/options"
 )