From f8cc21f0064a34042d149f31097336919adf70d1 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Wed, 16 Oct 2019 11:14:49 +0000
Subject: [PATCH] doc: check-man: use COLUMNS env for width

That's the environment documented in ncurses(3) and man(1) from
the man-db.nongnu.org distribution of man.
---
 Documentation/include.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/include.mk b/Documentation/include.mk
index 2878422c..07b9f2a3 100644
--- a/Documentation/include.mk
+++ b/Documentation/include.mk
@@ -92,7 +92,7 @@ doc_install :: install-man
 # n.b. not sure if our usage of man(1) is portable or not, so not
 # enabled by default "check" target:
 # check :: check-man
-check_man = @echo CHECK80 $<;COLS=80 $(MAN) ./$^ | \
+check_man = @echo CHECK80 $<;COLUMNS=80 $(MAN) ./$^ | \
 	$(AWK) '{gsub(/\b./,"")}length>80{print;err=1}END{exit(err)}' >&2
 
 %.1.cols : %.1; $(check_man)
-- 
2.44.0