From 140c5d89f19c4ce88b06dde2d6c3780d86608da3 Mon Sep 17 00:00:00 2001
From: Uwe Krueger <uwe.krueger@sap.com>
Date: Thu, 2 Jun 2022 11:08:19 +0200
Subject: [PATCH] provide usefull errors when using invalid sub command

---
 command.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/command.go b/command.go
index 6ff47dd5..5c0db8b1 100644
--- a/command.go
+++ b/command.go
@@ -766,7 +766,10 @@ func (c *Command) Traverse(args []string) (*Command, []string, error) {
 
 		cmd := c.findNext(arg)
 		if cmd == nil {
-			return c, args, nil
+			if c.Runnable() {
+				return c, args, nil
+			}
+			return c, args, legacyArgs(c, args)
 		}
 
 		if err := c.ParseFlags(flags); err != nil {