t1000-t1999: fix broken &&-chains

diff --git a/t/t1020-subdirectory.sh b/t/t1020-subdirectory.sh
index df3183ea1ab36a46b914333e834093bd50847265..c2df75e4953d897acee5cf590b9c358e5a0b77c2 100755 (executable)
--- a/t/t1020-subdirectory.sh
+++ b/t/t1020-subdirectory.sh
@@ -148,7 +148,7 @@ test_expect_success 'GIT_PREFIX for built-ins' '
        (
                cd dir &&
                echo "change" >two &&
-               GIT_EXTERNAL_DIFF=./diff git diff >../actual
+               GIT_EXTERNAL_DIFF=./diff git diff >../actual &&
                git checkout -- two
        ) &&
        test_cmp expect actual