From c5fe65a6e7d4418f97f2ddbfa2586e915f0780d2 Mon Sep 17 00:00:00 2001
From: Markus Heiser <markus@darmarit.de>
Date: Mon, 22 Feb 2021 20:10:18 +0100
Subject: [PATCH] [fix] do not spit out error messages for utils/lxc.sh --help

Error::

  $ utils/lxc.sh --help
  ERROR: missing command lxc
  ...

This breaks also docs build::

  $ make docs
  ...
  WARNING: Unexpected return code 42 from command '../utils/lxc.sh --help'
  ...

Signed-off-by: Markus Heiser <markus@darmarit.de>
---
 utils/lxc.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/utils/lxc.sh b/utils/lxc.sh
index 79cb1c04..f065bf3c 100755
--- a/utils/lxc.sh
+++ b/utils/lxc.sh
@@ -142,11 +142,11 @@ main() {
     local _usage="unknown or missing $1 command $2"
 
     # don't check prerequisite when in recursion
-    if [[ ! $1 == __* ]]; then
+    if [[ ! $1 == __* ]] && [[ ! $1 == --help  ]]; then
         if ! in_container; then
             ! required_commands lxc && lxd_info && exit 42
         fi
-        [[ -z $LXC_SUITE ]] && err_msg "missing LXC_SUITE" && exit 42 
+        [[ -z $LXC_SUITE ]] && err_msg "missing LXC_SUITE" && exit 42
     fi
 
     case $1 in