From b51b2bb4c3da805727fd43219e3f817475ae52d3 Mon Sep 17 00:00:00 2001
From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 11 Feb 2008 10:56:26 -0800
Subject: [PATCH] help.c: guard config parser from value=NULL

help.format configuration expects a string value

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 help.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/help.c b/help.c
index 1302a61c83..95e7640fed 100644
--- a/help.c
+++ b/help.c
@@ -40,6 +40,8 @@ static void parse_help_format(const char *format)
 static int git_help_config(const char *var, const char *value)
 {
 	if (!strcmp(var, "help.format")) {
+		if (!value)
+			return config_error_nonbool(var);
 		help_default_format = xstrdup(value);
 		return 0;
 	}