From ad3273986024c80cfe067d1b77983901a41b6d01 Mon Sep 17 00:00:00 2001
From: Markus Heiser <markus.heiser@darmarit.de>
Date: Sun, 16 Feb 2020 20:07:37 +0100
Subject: shellcheck: fix usse -n instead of ! -z (SC2236 SC2237)

 - https://www.shellcheck.net/wiki/SC2236 -- Use -n instead of ! -z.
 - https://www.shellcheck.net/wiki/SC2237 -- Use [ -n .. ] instead of ! [ -z ....

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
---
 utils/filtron.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'utils/filtron.sh')

diff --git a/utils/filtron.sh b/utils/filtron.sh
index df6932723..2cbea4023 100755
--- a/utils/filtron.sh
+++ b/utils/filtron.sh
@@ -97,7 +97,7 @@ If needed, set PUBLIC_URL of your WEB service in the '${DOT_CONFIG#"$REPO_ROOT/"
   FILTRON_TARGET : ${FILTRON_TARGET}
 
 EOF
-    [ ! -z "${1+x}" ] &&  err_msg "$1"
+    [[ -n ${1} ]] &&  err_msg "$1"
 }
 
 main() {
-- 
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