test(fixtures): specify the path for checking variables

.github/fixtures/check_vars.sh

@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
-set -e
+set -eu
 
 while IFS='=' read -r variable value; do
     if [[ -n "$value" ]]; then
         echo "[+] $variable=$value"
         test "$(sysctl -b ${variable/ /})" = "${value/ /}"
     fi
-done < "sysctl.conf"
+done < "$1"

.github/workflows/ci.yml

@@ -110,7 +110,7 @@ jobs:
               --features live-tests \
               --out Xml --verbose \
               -- "test_systeroid"
-          ./.github/fixtures/test.sh
+          ./.github/fixtures/check_vars.sh systeroid/sysctl.conf
           mv cobertura.xml live-test-output.xml
 
       - name: Upload reports to codecov