t2027: use test_must_be_empty

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

diff --git a/t/t2070-restore.sh b/t/t2070-restore.sh
index 73ea13e..2650df1 100755 (executable)
--- a/t/t2070-restore.sh
+++ b/t/t2070-restore.sh
@@ -90,9 +90,8 @@ test_expect_success 'restore --ignore-unmerged ignores unmerged entries' '
 
                git restore --ignore-unmerged --quiet . >output 2>&1 &&
                git diff common >diff-output &&
-               : >empty &&
-               test_cmp empty output &&
-               test_cmp empty diff-output
+               test_must_be_empty output &&
+               test_must_be_empty diff-output
        )
 '