From c50e19fb3ffd7891fef2d44228e67c1b50f23928 Mon Sep 17 00:00:00 2001
From: Valentin Lab <valentin.lab@kalysto.org>
Date: Fri, 15 Feb 2019 17:06:25 +0100
Subject: [PATCH] fix: when providing an unknown argument, help was not
 displayed on standard error. !minor

---
 bin/compose-core | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/compose-core b/bin/compose-core
index b6f3b8d..083f14a 100755
--- a/bin/compose-core
+++ b/bin/compose-core
@@ -3806,7 +3806,7 @@ while read-0 arg; do
                         compose_opts+=("$arg")
                     else
                         err "Unknown option '$arg'. Please check help:"
-                        display_help
+                        display_help >&2
                         exit 1
                     fi
                     ;;