From 833f7c8c55c3c8a572db2112a5c2eac92c8262b8 Mon Sep 17 00:00:00 2001
From: Rich Salz <rsalz@akamai.com>
Date: Wed, 2 Oct 2019 15:40:42 -0400
Subject: [PATCH] Also mention -- flag and ignore if undocumented

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10077)
---
 apps/list.c        | 2 ++
 util/find-doc-nits | 1 +
 2 files changed, 3 insertions(+)

diff --git a/apps/list.c b/apps/list.c
index d7c46906aa..77fd20e1e1 100644
--- a/apps/list.c
+++ b/apps/list.c
@@ -337,6 +337,8 @@ static void list_options_for_command(const char *command)
             continue;
         BIO_printf(bio_out, "%s %c\n", o->name, o->valtype);
     }
+    /* Always output the -- marker since it is sometimes documented. */
+    BIO_printf(bio_out, "- -\n");
 }
 
 static void list_type(FUNC_TYPE ft, int one)
diff --git a/util/find-doc-nits b/util/find-doc-nits
index c1e33fcfe4..ea5254b729 100755
--- a/util/find-doc-nits
+++ b/util/find-doc-nits
@@ -809,6 +809,7 @@ sub checkflags {
     }
     if ( scalar @undocced > 0 ) {
         foreach ( @undocced ) {
+            next if /-/; # Skip the -- end-of-flags marker
             err("$doc: undocumented option -$_");
         }
     }
-- 
2.25.1