From f093238324ab2c9003864c779b722a7afb72f139 Mon Sep 17 00:00:00 2001
From: Simon Howard <fraggle@soulsphere.org>
Date: Mon, 11 Nov 2019 19:11:56 -0500
Subject: [PATCH] Reverse comparison order.

Missing from generated output should produce a '-' not a '+'.
---
 GNUmakefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GNUmakefile b/GNUmakefile
index ce0563a..1ee4f3c 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -12,7 +12,7 @@ OUTPUTS=output/av.txt \
         output/pl2.txt
 
 check: $(OUTPUTS)
-	diff -x .gitignore -ur output expected
+	diff -x .gitignore -ur expected output
 
 clean:
 	rm -rf $(OUTPUTS)