godeps: update github.com/kr/pty

Godeps/Godeps.json

 {
 	"ImportPath": "k8s.io/kubernetes",
-	"GoVersion": "go1.5.1",
+	"GoVersion": "go1.5",
 	"Packages": [
 		"./..."
 	],
@@ -692,8 +692,8 @@
 		},
 		{
 			"ImportPath": "github.com/kr/pty",
-			"Comment": "release.r56-25-g05017fc",
-			"Rev": "05017fcccf23c823bfdea560dcc958a136e54fb7"
+			"Comment": "release.r56-29-gf7ee69f",
+			"Rev": "f7ee69f31298ecbe5d2b349c711e2547a617d398"
 		},
 		{
 			"ImportPath": "github.com/matttproud/golang_protobuf_extensions/pbutil",

Godeps/_workspace/src/github.com/kr/pty/run.go

@@ -18,7 +18,11 @@ func Start(c *exec.Cmd) (pty *os.File, err error) {
 	c.Stdout = tty
 	c.Stdin = tty
 	c.Stderr = tty
-	c.SysProcAttr = &syscall.SysProcAttr{Setctty: true, Setsid: true}
+	if c.SysProcAttr == nil {
+		c.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	c.SysProcAttr.Setctty = true
+	c.SysProcAttr.Setsid = true
 	err = c.Start()
 	if err != nil {
 		pty.Close()

Godeps/_workspace/src/github.com/kr/pty/ztypes_arm64.go

+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+// +build arm64
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)