Update urfave/cli to v1.20.0

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

vendor/github.com/urfave/cli/command.go

@@ -59,6 +59,25 @@ type Command struct {
 	// Full name of command for help, defaults to full command name, including parent commands.
 	HelpName        string
 	commandNamePath []string
+
+	// CustomHelpTemplate the text template for the command help topic.
+	// cli.go uses text/template to render templates. You can
+	// render custom help text by setting this variable.
+	CustomHelpTemplate string
+}
+
+type CommandsByName []Command
+
+func (c CommandsByName) Len() int {
+	return len(c)
+}
+
+func (c CommandsByName) Less(i, j int) bool {
+	return c[i].Name < c[j].Name
+}
+
+func (c CommandsByName) Swap(i, j int) {
+	c[i], c[j] = c[j], c[i]
 }
 
 // FullName returns the full name of the command.
@@ -140,19 +159,20 @@ func (c Command) Run(ctx *Context) (err error) {
 	}
 
 	context := NewContext(ctx.App, set, ctx)
+	context.Command = c
 	if checkCommandCompletions(context, c.Name) {
 		return nil
 	}
 
 	if err != nil {
 		if c.OnUsageError != nil {
-			err := c.OnUsageError(ctx, err, false)
+			err := c.OnUsageError(context, err, false)
 			HandleExitCoder(err)
 			return err
 		}
-		fmt.Fprintln(ctx.App.Writer, "Incorrect Usage:", err.Error())
-		fmt.Fprintln(ctx.App.Writer)
-		ShowCommandHelp(ctx, c.Name)
+		fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error())
+		fmt.Fprintln(context.App.Writer)
+		ShowCommandHelp(context, c.Name)
 		return err
 	}
 
@@ -177,9 +197,7 @@ func (c Command) Run(ctx *Context) (err error) {
 	if c.Before != nil {
 		err = c.Before(context)
 		if err != nil {
-			fmt.Fprintln(ctx.App.Writer, err)
-			fmt.Fprintln(ctx.App.Writer)
-			ShowCommandHelp(ctx, c.Name)
+			ShowCommandHelp(context, c.Name)
 			HandleExitCoder(err)
 			return err
 		}
@@ -189,7 +207,6 @@ func (c Command) Run(ctx *Context) (err error) {
 		c.Action = helpSubcommand.Action
 	}
 
-	context.Command = c
 	err = HandleAction(c.Action, context)
 
 	if err != nil {
@@ -230,14 +247,13 @@ func (c Command) startApp(ctx *Context) error {
 		app.HelpName = app.Name
 	}
 
-	if c.Description != "" {
-		app.Usage = c.Description
-	} else {
-		app.Usage = c.Usage
-	}
+	app.Usage = c.Usage
+	app.Description = c.Description
+	app.ArgsUsage = c.ArgsUsage
 
 	// set CommandNotFound
 	app.CommandNotFound = ctx.App.CommandNotFound
+	app.CustomAppHelpTemplate = c.CustomHelpTemplate
 
 	// set the flags and commands
 	app.Commands = c.Subcommands
@@ -250,6 +266,7 @@ func (c Command) startApp(ctx *Context) error {
 	app.Author = ctx.App.Author
 	app.Email = ctx.App.Email
 	app.Writer = ctx.App.Writer
+	app.ErrWriter = ctx.App.ErrWriter
 
 	app.categories = CommandCategories{}
 	for _, command := range c.Subcommands {
@@ -272,6 +289,7 @@ func (c Command) startApp(ctx *Context) error {
 	} else {
 		app.Action = helpSubcommand.Action
 	}
+	app.OnUsageError = c.OnUsageError
 
 	for index, cc := range app.Commands {
 		app.Commands[index].commandNamePath = []string{c.Name, cc.Name}