fix tests

command.go

@@ -39,9 +39,8 @@ type Command struct {
 	// Boolean to hide built-in help command
 	HideHelp bool
 
-	// Name of parent command for help, defaults to app.Name and parent
-	// command.Name.
-	ParentName      string
+	// Name of command for help, defaults to full command name
+	HelpName        string
 	commandNamePath []string
 }
 
@@ -158,14 +157,12 @@ func (c Command) startApp(ctx *Context) error {
 
 	// set the name and usage
 	app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
+	app.HelpName = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
 	if c.Description != "" {
 		app.Usage = c.Description
 	} else {
 		app.Usage = c.Usage
 	}
-	if c.ArgsUsage == "" {
-		c.ArgsUsage = "[arguments...]"
-	}
 
 	// set CommandNotFound
 	app.CommandNotFound = ctx.App.CommandNotFound
@@ -199,7 +196,6 @@ func (c Command) startApp(ctx *Context) error {
 
 	var newCmds []Command
 	for _, cc := range app.Commands {
-		cc.ParentName = app.Name
 		cc.commandNamePath = []string{c.Name, cc.Name}
 		newCmds = append(newCmds, cc)
 	}