bin/brew: handle unbound variable.

This can fail when running `bin/brew` under `set -u`.
2025-07-14 16:09:03 +08:00 · 2025-01-09 12:25:10 +00:00 · 2025-01-09 12:25:10 +00:00 · ac7f3d6182
commit ac7f3d6182
parent 352f6ac047
1 changed files with 1 additions and 1 deletions
--- a/bin/brew
+++ b/bin/brew
@ -150,7 +150,7 @@ export_homebrew_env_file() {
    do
      [[ "${line}" = "${VAR}"* ]] && invalid_variable="${VAR}"
    done
-    [[ -n "${invalid_variable}" ]] && continue
+    [[ -n "${invalid_variable:-}" ]] && continue

    export "${line?}"
  done <"${env_file}"