From 6887ad7003707743c9d5f3dbaffe3b2de3e3ba6b Mon Sep 17 00:00:00 2001
From: Luca Ceresoli <luca@lucaceresoli.net>
Date: Sat, 9 Dec 2017 22:29:59 +0100
Subject: support/scripts/genimage.sh: show usage when invoked incorrectly

[Peter: use ${0}]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 support/scripts/genimage.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'support')

diff --git a/support/scripts/genimage.sh b/support/scripts/genimage.sh
index 625afc108c..039b3fef1d 100755
--- a/support/scripts/genimage.sh
+++ b/support/scripts/genimage.sh
@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 
 die() {
-  echo "Error: $@" >&2
+  cat <<EOF >&2
+Error: $@
+
+Usage: ${0} -c GENIMAGE_CONFIG_FILE
+EOF
   exit 1
 }
 
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