t1400 (update-ref): use test_must_fail

diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index 023f225a4b1f22c66fb291a76690564696d56035..79195e21cb1045b1d145a8f5e21fb4d99e0cd884 100755 (executable)
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -452,7 +452,7 @@ test_expect_success 'outside of git repository' '
                echo file1:hello &&
                echo sub/file2:world
        } >non/expect.full &&
-       echo file2:world >non/expect.sub
+       echo file2:world >non/expect.sub &&
        (
                GIT_CEILING_DIRECTORIES="$(pwd)/non/git" &&
                export GIT_CEILING_DIRECTORIES &&
@@ -478,7 +478,7 @@ test_expect_success 'inside git repository but with --no-index' '
                echo sub/file2:world
        } >is/expect.full &&
        : >is/expect.empty &&
-       echo file2:world >is/expect.sub
+       echo file2:world >is/expect.sub &&
        (
                cd is/git &&
                git init &&