From 524152fc68617727be4a663160de80f3ebe7cef3 Mon Sep 17 00:00:00 2001
From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Date: Mon, 26 Apr 2021 16:37:24 -0400
Subject: properly fail on empty source

---
 tmpoverlay | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tmpoverlay b/tmpoverlay
index 10662f5..d5e84f2 100755
--- a/tmpoverlay
+++ b/tmpoverlay
@@ -126,7 +126,7 @@ done
 [ $# != 0 ] || { log 'no paths specified'; usage >&2; exit 1; }
 
 unset lowerdir
-while [ -n "$2" ]; do
+while [ "$#" != 1 ]; do
     d=$(canon "$1")
     if [ -h "$d" ] || ! [ -d "$d" ]; then
         die 'source "%s" is not a directory' "$d"
-- 
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