userdiff tests: explicitly test "default" pattern

Since 122aa6f9c0 (diff: introduce diff.<driver>.binary, 2008-10-05) the internals of the userdiff.c code have understood a "default" name, which is invoked as userdiff_find_by_name("default") and present in the "builtin_drivers" struct. Let's test for this special case. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Apr 8, 2021 at 17:04 UTC 132bf259890c1f5b29befcc68e9ed225187ca9f6
1 file changed +1
t/t4018-diff-funcname.sh
+1
@@ -49,6 +49,7 @@ diffpatterns="
49 ruby
50 rust
51 tex
52 + default
53 custom1
54 custom2
55 custom3