help.c: guard config parser from value=NULL

help.format configuration expects a string value Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11 10:56:26 -08:00
parent e08404a82d
commit b51b2bb4c3
1 changed files with 2 additions and 0 deletions
--- 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;
 	}