update vendor

Signed-off-by: Jess Frazelle <acidburn@microsoft.com>

vendor/github.com/opencontainers/runc/kill.go

@@ -0,0 +1,71 @@
+// +build linux
+
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/urfave/cli"
+)
+
+var killCommand = cli.Command{
+	Name:  "kill",
+	Usage: "kill sends the specified signal (default: SIGTERM) to the container's init process",
+	ArgsUsage: `<container-id> [signal]
+
+Where "<container-id>" is the name for the instance of the container and
+"[signal]" is the signal to be sent to the init process.
+
+EXAMPLE:
+For example, if the container id is "ubuntu01" the following will send a "KILL"
+signal to the init process of the "ubuntu01" container:
+	 
+       # runc kill ubuntu01 KILL`,
+	Flags: []cli.Flag{
+		cli.BoolFlag{
+			Name:  "all, a",
+			Usage: "send the specified signal to all processes inside the container",
+		},
+	},
+	Action: func(context *cli.Context) error {
+		if err := checkArgs(context, 1, minArgs); err != nil {
+			return err
+		}
+		if err := checkArgs(context, 2, maxArgs); err != nil {
+			return err
+		}
+		container, err := getContainer(context)
+		if err != nil {
+			return err
+		}
+
+		sigstr := context.Args().Get(1)
+		if sigstr == "" {
+			sigstr = "SIGTERM"
+		}
+
+		signal, err := parseSignal(sigstr)
+		if err != nil {
+			return err
+		}
+		if err := container.Signal(signal, context.Bool("all")); err != nil {
+			return err
+		}
+		return nil
+	},
+}
+
+func parseSignal(rawSignal string) (syscall.Signal, error) {
+	s, err := strconv.Atoi(rawSignal)
+	if err == nil {
+		return syscall.Signal(s), nil
+	}
+	signal, ok := signalMap[strings.TrimPrefix(strings.ToUpper(rawSignal), "SIG")]
+	if !ok {
+		return -1, fmt.Errorf("unknown signal %q", rawSignal)
+	}
+	return signal, nil
+}