From 23e9931645f7c2923ea842164a7797c7e46fb5b8 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Tue, 28 Feb 2023 14:48:33 -0500
Subject: [PATCH] Prevent spurious error return.

---
 tests/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Makefile b/tests/Makefile
index 59f2972..d188e70 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -30,7 +30,7 @@ TESTLOADS := $(shell ls -1 *.log | sed '/.log/s///' | sort)
 check: savecheck
 	@make tap | tapview
 	@echo "=== No diff output is good news."
-	@-advent -x 2>/dev/null	# Get usage message into coverage tests
+	@-advent -x 2>/dev/null	|| exit 0 # Get usage message into coverage tests
 	@-advent -l /dev/null <pitfall.log >/dev/null
 
 .SUFFIXES: .chk
-- 
2.31.1