Fix hack/.vendor-helper.sh for main package move.

Otherwise the "clean" step of hack/vendor.sh would drop most .go files
from vendor/ as unused.

Also commits refreshed versions of a few of the vendored packages.

vendor/github.com/codegangsta/cli/README.md

@@ -1,6 +1,7 @@
 [![Coverage](http://gocover.io/_badge/github.com/codegangsta/cli?0)](http://gocover.io/github.com/codegangsta/cli)
 [![Build Status](https://travis-ci.org/codegangsta/cli.svg?branch=master)](https://travis-ci.org/codegangsta/cli)
 [![GoDoc](https://godoc.org/github.com/codegangsta/cli?status.svg)](https://godoc.org/github.com/codegangsta/cli)
+[![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-codegangsta-cli)
 
 # cli.go
 

vendor/github.com/codegangsta/cli/app.go

@@ -32,7 +32,7 @@ type App struct {
 	EnableBashCompletion bool
 	// Boolean to hide built-in help command
 	HideHelp bool
-	// Boolean to hide built-in version flag
+	// Boolean to hide built-in version flag and the VERSION section of help
 	HideVersion bool
 	// An action to execute when the bash-completion flag is set
 	BashComplete func(context *Context)

vendor/github.com/codegangsta/cli/help.go

@@ -16,10 +16,10 @@ var AppHelpTemplate = `NAME:
 
 USAGE:
    {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .Flags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
-   {{if .Version}}
+   {{if .Version}}{{if not .HideVersion}}
 VERSION:
    {{.Version}}
-   {{end}}{{if len .Authors}}
+   {{end}}{{end}}{{if len .Authors}}
 AUTHOR(S):
    {{range .Authors}}{{ . }}{{end}}
    {{end}}{{if .Commands}}

vendor/github.com/opencontainers/runc/libcontainer/user/lookup.go

@@ -2,13 +2,15 @@ package user
 
 import (
 	"errors"
-	"fmt"
 	"syscall"
 )
 
 var (
 	// The current operating system does not provide the required data for user lookups.
 	ErrUnsupported = errors.New("user lookup: operating system does not provide passwd-formatted data")
+	// No matching entries found in file.
+	ErrNoPasswdEntries = errors.New("no matching entries in passwd file")
+	ErrNoGroupEntries  = errors.New("no matching entries in group file")
 )
 
 func lookupUser(filter func(u User) bool) (User, error) {
@@ -27,7 +29,7 @@ func lookupUser(filter func(u User) bool) (User, error) {
 
 	// No user entries found.
 	if len(users) == 0 {
-		return User{}, fmt.Errorf("no matching entries in passwd file")
+		return User{}, ErrNoPasswdEntries
 	}
 
 	// Assume the first entry is the "correct" one.
@@ -75,7 +77,7 @@ func lookupGroup(filter func(g Group) bool) (Group, error) {
 
 	// No user entries found.
 	if len(groups) == 0 {
-		return Group{}, fmt.Errorf("no matching entries in group file")
+		return Group{}, ErrNoGroupEntries
 	}
 
 	// Assume the first entry is the "correct" one.