meta/bandwidth: group and sort imports

ref: https://github.com/golang/go/wiki/CodeReviewComments#imports

plugins/meta/bandwidth/bandwidth_linux_test.go

@@ -15,21 +15,23 @@
 package bandwidth
 
 import (
-	"fmt"
-
 	"encoding/json"
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/vishvananda/netlink"
+
 	"github.com/containernetworking/cni/pkg/invoke"
 	"github.com/containernetworking/cni/pkg/skel"
 	"github.com/containernetworking/cni/pkg/types"
 	"github.com/containernetworking/cni/pkg/types/current"
 	"github.com/containernetworking/plugins/pkg/ns"
 	"github.com/containernetworking/plugins/pkg/testutils"
+
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/gexec"
-	"github.com/vishvananda/netlink"
-	"net"
-	"time"
 )
 
 var _ = Describe("bandwidth test", func() {

plugins/meta/bandwidth/bandwidth_suite_test.go

@@ -15,15 +15,8 @@ package bandwidth
 // limitations under the License.
 
 import (
-	. "github.com/onsi/ginkgo"
-	. "github.com/onsi/gomega"
-
 	"bytes"
 	"fmt"
-	"github.com/containernetworking/plugins/pkg/ns"
-	"github.com/onsi/gomega/gbytes"
-	"github.com/onsi/gomega/gexec"
-	"github.com/vishvananda/netlink"
 	"io"
 	"net"
 	"os/exec"
@@ -31,6 +24,15 @@ import (
 	"strconv"
 	"strings"
 	"testing"
+
+	"github.com/containernetworking/plugins/pkg/ns"
+	"github.com/onsi/gomega/gbytes"
+	"github.com/onsi/gomega/gexec"
+
+	"github.com/vishvananda/netlink"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
 )
 
 func TestTBF(t *testing.T) {

plugins/meta/bandwidth/ifb_creator.go

@@ -16,10 +16,12 @@ package bandwidth
 
 import (
 	"fmt"
-	"github.com/containernetworking/plugins/pkg/ip"
-	"github.com/vishvananda/netlink"
 	"net"
 	"syscall"
+
+	"github.com/containernetworking/plugins/pkg/ip"
+
+	"github.com/vishvananda/netlink"
 )
 
 const latencyInMillis = 25

plugins/meta/bandwidth/main.go

@@ -24,6 +24,7 @@ import (
 	"github.com/containernetworking/cni/pkg/types"
 	"github.com/containernetworking/cni/pkg/types/current"
 	"github.com/containernetworking/cni/pkg/version"
+
 	"github.com/vishvananda/netlink"
 )