From 48161367cd7b9a0ea25b2e43acbc8b8d99ad0504 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Fri, 26 Sep 2025 17:09:09 +0200
Subject: [PATCH] Fix unbound variable in log initialization

---
 lib/log.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/log.sh b/lib/log.sh
index 0b801f7..5f94701 100644
--- a/lib/log.sh
+++ b/lib/log.sh
@@ -8,7 +8,7 @@
 # ==============================================================================
 
 # Unless $LOG_FD is already set to a valid fd
-if ! [[ "$LOG_FD" =~ ^[0-9]+$ ]] || ! { true >&"$LOG_FD" ; } 2>/dev/null ; then
+if ! [[ "${LOG_FD-}" =~ ^[0-9]+$ ]] || ! { : >&"${LOG_FD-2}"; } 2>/dev/null; then
   # Preserve the original STDOUT on a free fd (stored in $LOG_FD) so that we can
   # log to it without interfering with the STDOUT of subshells whose output we
   # want to capture for other purposes.