fix: add newline after each log line

overlay/usr/local/lib/log.sh

@@ -8,7 +8,7 @@ log() {
     message="$2"
     timestamp=$(date +"%Y-%m-%d %H:%M:%S")
     script_name="$(basename "$0")"
-    printf >&2 "%s [%s] [%s] %b" "${timestamp}" "${level}" "$script_name" "${message}"
+    printf >&2 "%s [%s] [%s] %b\n" "${timestamp}" "${level}" "$script_name" "${message}"
 }
 
 # Log the given message at INFO level. All logs are written to stderr with a timestamp.