From 48cb0209ffb9f48dea927115f8ebf12d066ea9fb Mon Sep 17 00:00:00 2001
From: David Irvine <aviddiviner@gmail.com>
Date: Wed, 7 Dec 2016 12:08:28 -0500
Subject: [PATCH] Allow bound struct to omit --help and --version keys

---
 opts.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/opts.go b/opts.go
index 6a7fc58..574282e 100644
--- a/opts.go
+++ b/opts.go
@@ -135,6 +135,9 @@ func (o Opts) Bind(v interface{}) error {
 	for k, v := range o {
 		i, ok := indexMap[k]
 		if !ok {
+			if k == "--help" || k == "--version" {
+				continue
+			}
 			return newError("mapping of '%s' is not found in given struct, or an unexported field", k)
 		}
 		field := value.Field(i)