userdiff: recognize 'macro_rules!' as starting a Rust function block
Signed-off-by: Konrad Borowski <konrad@borowski.pw>Signed-off-by: Junio C Hamano <gitster@pobox.com>
authored by Konrad Borowski and committed by Junio C Hamano 5 years ago a04c7e0f d98273ba