*: replace 'golang.org/x/net/context' with 'context'

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>

etcdctl/ctlv2/command/cluster_health.go

@@ -15,6 +15,7 @@
 package command
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -24,8 +25,8 @@ import (
 	"time"
 
 	"github.com/coreos/etcd/client"
+
 	"github.com/urfave/cli"
-	"golang.org/x/net/context"
 )
 
 func NewClusterHealthCommand() cli.Command {

etcdctl/ctlv2/command/exec_watch_command.go

@@ -15,6 +15,7 @@
 package command
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"os"
@@ -22,8 +23,8 @@ import (
 	"os/signal"
 
 	"github.com/coreos/etcd/client"
+
 	"github.com/urfave/cli"
-	"golang.org/x/net/context"
 )
 
 // NewExecWatchCommand returns the CLI command for "exec-watch".

etcdctl/ctlv2/command/util.go

@@ -15,6 +15,7 @@
 package command
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
@@ -27,11 +28,11 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/bgentry/speakeasy"
 	"github.com/coreos/etcd/client"
 	"github.com/coreos/etcd/pkg/transport"
+
+	"github.com/bgentry/speakeasy"
 	"github.com/urfave/cli"
-	"golang.org/x/net/context"
 )
 
 var (

etcdctl/ctlv2/command/watch_command.go

@@ -15,14 +15,15 @@
 package command
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"os"
 	"os/signal"
 
 	"github.com/coreos/etcd/client"
+
 	"github.com/urfave/cli"
-	"golang.org/x/net/context"
 )
 
 // NewWatchCommand returns the CLI command for "watch".