all: fix plugin import ordering (#1717)

Got a bit messed up with stb lib "context" usage.

plugin/kubernetes/handler.go

@@ -1,12 +1,12 @@
 package kubernetes
 
 import (
+	"context"
+
 	"github.com/coredns/coredns/plugin"
 	"github.com/coredns/coredns/plugin/pkg/dnsutil"
 	"github.com/coredns/coredns/request"
 
-	"context"
-
 	"github.com/miekg/dns"
 )
 

plugin/kubernetes/handler_pod_disabled_test.go

@@ -1,13 +1,12 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 )
 

plugin/kubernetes/handler_pod_insecure_test.go

@@ -1,13 +1,12 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 )
 

plugin/kubernetes/handler_pod_verified_test.go

@@ -1,13 +1,12 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 )
 

plugin/kubernetes/handler_test.go

@@ -1,14 +1,13 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 	"time"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 	api "k8s.io/api/core/v1"
 	meta "k8s.io/apimachinery/pkg/apis/meta/v1"

plugin/kubernetes/kubernetes_apex_test.go

@@ -1,13 +1,12 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 )
 

plugin/kubernetes/reverse_test.go

@@ -1,13 +1,12 @@
 package kubernetes
 
 import (
+	"context"
 	"testing"
 
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
-	"context"
-
 	"github.com/miekg/dns"
 	api "k8s.io/api/core/v1"
 	meta "k8s.io/apimachinery/pkg/apis/meta/v1"

plugin/kubernetes/xfr.go

@@ -1,6 +1,7 @@
 package kubernetes
 
 import (
+	"context"
 	"math"
 	"net"
 	"strings"
@@ -10,8 +11,6 @@ import (
 	"github.com/coredns/coredns/plugin/pkg/log"
 	"github.com/coredns/coredns/request"
 
-	"context"
-
 	"github.com/miekg/dns"
 	api "k8s.io/api/core/v1"
 )

plugin/kubernetes/xfr_test.go

@@ -1,11 +1,10 @@
 package kubernetes
 
 import (
+	"context"
 	"strings"
 	"testing"
 
-	"context"
-
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 	api "k8s.io/api/core/v1"