update-server-info: respect core.bigfilethreshold

This command indirectly calls check_sha1_signature() (add_info_ref ->
deref_tag -> parse_object -> ..) , which may put whole blob in memory
if the blob's size is under core.bigfilethreshold. As config is not
read, the threshold is always 512MB. Respect user settings here.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/update-server-info.c

@@ -15,6 +15,7 @@ int cmd_update_server_info(int argc, const char **argv, const char *prefix)
 		OPT_END()
 	};
 
+	git_config(git_default_config, NULL);
 	argc = parse_options(argc, argv, prefix, options,
 			     update_server_info_usage, 0);
 	if (argc > 0)

t/t1050-large.sh

@@ -130,7 +130,7 @@ test_expect_success 'git-show a large file' '
 
 '
 
-test_expect_failure 'repack' '
+test_expect_success 'repack' '
 	git repack -ad
 '