help.c: guard config parser from value=NULL

help.format configuration expects a string value Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-mirror · Feb 11, 2008 · b51b2bb · b51b2bb
1 parent e08404a
commit b51b2bb
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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;
 	}