From f5a2b8983dd6f4b0541c02e7f8bb5331c597728a Mon Sep 17 00:00:00 2001
From: Benno Schulenberg <bensberg@telfort.nl>
Date: Sat, 15 Feb 2025 17:47:20 +0100
Subject: [PATCH] syntax: groff: highlight the zeroeth macro argument too

It is used in some .tmac files.
---
 syntax/groff.nanorc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/syntax/groff.nanorc b/syntax/groff.nanorc
index f4a71fe0a1..f54dfaa170 100644
--- a/syntax/groff.nanorc
+++ b/syntax/groff.nanorc
@@ -25,4 +25,4 @@ color green start="\\(\\)?\*\[" end="]"
 color brightred "\\\(.."
 color brightred start="\\\[" end="]"
 # Macro arguments
-color brightcyan "\\\\\$[1-9]"
+color brightcyan "\\\\\$[0-9]"