ci: actually turn on fatal-meson-warnings in the "build" workflow

It's a follow-up to https://github.com/systemd/systemd/pull/23211

diff --git a/.github/workflows/build_test.sh b/.github/workflows/build_test.sh
index ad820cf0f504db2d907834fa6812142863d18b05..a43c3438d288ecba4d00da177b75d4e0b0cb49ce 100755 (executable)
--- a/.github/workflows/build_test.sh
+++ b/.github/workflows/build_test.sh
@@ -131,7 +131,6 @@ for args in "${ARGS[@]}"; do
     if [[ "$LINKER" != lld ]]; then
         additional_meson_args="--fatal-meson-warnings"
     fi
-    additional_meson_args=""
     info "Checking build with $args"
     # shellcheck disable=SC2086
     if ! AR="$AR" \