auth: update Go import paths to "go.etcd.io"

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>

auth/range_perm_cache.go

@@ -15,9 +15,9 @@
 package auth
 
 import (
-	"github.com/coreos/etcd/auth/authpb"
-	"github.com/coreos/etcd/mvcc/backend"
-	"github.com/coreos/etcd/pkg/adt"
+	"go.etcd.io/etcd/auth/authpb"
+	"go.etcd.io/etcd/mvcc/backend"
+	"go.etcd.io/etcd/pkg/adt"
 
 	"go.uber.org/zap"
 )

auth/range_perm_cache_test.go

@@ -17,8 +17,8 @@ package auth
 import (
 	"testing"
 
-	"github.com/coreos/etcd/auth/authpb"
-	"github.com/coreos/etcd/pkg/adt"
+	"go.etcd.io/etcd/auth/authpb"
+	"go.etcd.io/etcd/pkg/adt"
 
 	"go.uber.org/zap"
 )

auth/store.go

@@ -24,10 +24,10 @@ import (
 	"sync"
 	"sync/atomic"
 
-	"github.com/coreos/etcd/auth/authpb"
-	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
-	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
-	"github.com/coreos/etcd/mvcc/backend"
+	"go.etcd.io/etcd/auth/authpb"
+	"go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes"
+	pb "go.etcd.io/etcd/etcdserver/etcdserverpb"
+	"go.etcd.io/etcd/mvcc/backend"
 
 	"github.com/coreos/pkg/capnslog"
 	"go.uber.org/zap"
@@ -48,7 +48,7 @@ var (
 	authUsersBucketName = []byte("authUsers")
 	authRolesBucketName = []byte("authRoles")
 
-	plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "auth")
+	plog = capnslog.NewPackageLogger("go.etcd.io/etcd", "auth")
 
 	ErrRootUserNotExist     = errors.New("auth: root user does not exist")
 	ErrRootRoleNotExist     = errors.New("auth: root user does not have root role")

auth/store_test.go

@@ -24,10 +24,10 @@ import (
 	"testing"
 	"time"
 
-	"github.com/coreos/etcd/auth/authpb"
-	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
-	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
-	"github.com/coreos/etcd/mvcc/backend"
+	"go.etcd.io/etcd/auth/authpb"
+	"go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes"
+	pb "go.etcd.io/etcd/etcdserver/etcdserverpb"
+	"go.etcd.io/etcd/mvcc/backend"
 
 	"go.uber.org/zap"
 	"golang.org/x/crypto/bcrypt"