Grouped commands help description

command/acl.go

@@ -12,11 +12,17 @@ type ACLCommand struct {
 
 func (f *ACLCommand) Help() string {
 	helpText := `
-Usage: nomad acl <subcommand> [options]
+Usage: nomad acl <subcommand> [options] [args]
 
-  Interact with ACL policies and tokens.
+  This command groups subcommands for interacting with ACL policies and tokens.
+  Users can bootstrap Nomad's ACL system, create policies that restrict access,
+  and generate tokens from those policies.
 
-  Run nomad acl <subcommand> with no arguments for help on that subcommand.
+  Bootstrap ACLs:
+
+      $ nomad acl bootstrap
+
+  Please see the individual subcommand help for detailed usage information.
 `
 	return strings.TrimSpace(helpText)
 }