contrib/subtree/Makefile: use GIT-VERSION-FILE

diff --git a/t/t5305-include-tag.sh b/t/t5305-include-tag.sh
index b061864a8743636ae7759ff4e8ff2694410617a1..21517c70cd49ab91ab267544311d8c33173e3c3e 100755 (executable)
--- a/t/t5305-include-tag.sh
+++ b/t/t5305-include-tag.sh
@@ -45,9 +45,7 @@ test_expect_success 'unpack objects' '
 test_expect_success 'check unpacked result (have commit, no tag)' '
        git rev-list --objects $commit >list.expect &&
        (
-               GIT_DIR=clone.git &&
-               export GIT_DIR &&
-               test_must_fail git cat-file -e $tag &&
+               test_must_fail env GIT_DIR=clone.git git cat-file -e $tag &&
                git rev-list --objects $commit
        ) >list.actual &&
        test_cmp list.expect list.actual