From c9a7385997ef1385d13fe845be4e48960b939268 Mon Sep 17 00:00:00 2001
From: Victor Engmark <victor@engmark.name>
Date: Fri, 26 Nov 2021 18:55:53 +1300
Subject: nixos/installer: Use `-n` instead of `! -z`

See <https://github.com/koalaman/shellcheck/wiki/SC2236>.
---
 nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'nixos/modules')

diff --git a/nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh b/nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh
index ed167b389d03..a2ae3105b00c 100644
--- a/nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh
+++ b/nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh
@@ -30,7 +30,7 @@ while [ $# -gt 0 ]; do
         nixBuildArgs+=("--option" "$1" "$2"); shift
         ;;
       *)
-        if [ ! -z "$networkExpr" ]; then
+        if [ -n "$networkExpr" ]; then
           echo "Network expression already set!"
           showUsage
           exit 1
-- 
cgit 1.4.1