update vendor

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

vendor/github.com/opencontainers/runc/libcontainer/utils/utils.go

@@ -1,8 +1,6 @@
 package utils
 
 import (
-	"crypto/rand"
-	"encoding/hex"
 	"encoding/json"
 	"io"
 	"os"
@@ -17,19 +15,6 @@ const (
 	exitSignalOffset = 128
 )
 
-// GenerateRandomName returns a new name joined with a prefix.  This size
-// specified is used to truncate the randomly generated value
-func GenerateRandomName(prefix string, size int) (string, error) {
-	id := make([]byte, 32)
-	if _, err := io.ReadFull(rand.Reader, id); err != nil {
-		return "", err
-	}
-	if size > 64 {
-		size = 64
-	}
-	return prefix + hex.EncodeToString(id)[:size], nil
-}
-
 // ResolveRootfs ensures that the current working directory is
 // not a symlink and returns the absolute path to the rootfs
 func ResolveRootfs(uncleanRootfs string) (string, error) {

vendor/github.com/opencontainers/runc/libcontainer/utils/utils_test.go

@@ -10,28 +10,6 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-func TestGenerateName(t *testing.T) {
-	name, err := GenerateRandomName("veth", 5)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	expected := 5 + len("veth")
-	if len(name) != expected {
-		t.Fatalf("expected name to be %d chars but received %d", expected, len(name))
-	}
-
-	name, err = GenerateRandomName("veth", 65)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	expected = 64 + len("veth")
-	if len(name) != expected {
-		t.Fatalf("expected name to be %d chars but received %d", expected, len(name))
-	}
-}
-
 var labelTest = []struct {
 	labels        []string
 	query         string
@@ -151,4 +129,14 @@ func TestCleanPath(t *testing.T) {
 	if path != "/var" {
 		t.Errorf("expected to receive '/var' and received %s", path)
 	}
+
+	path = CleanPath("/foo/bar/")
+	if path != "/foo/bar" {
+		t.Errorf("expected to receive '/foo/bar' and received %s", path)
+	}
+
+	path = CleanPath("/foo/bar/../")
+	if path != "/foo" {
+		t.Errorf("expected to receive '/foo' and received %s", path)
+	}
 }