Catch failures from t5540-http-push

git http-push doesn't handle packed-refs, and now the new builtin-clone
created packed refs, the http-push test fails.

Mark the current failure as such, and also catch third test's failure
that went unreported because git push doesn't return an error code when
it says:
 No refs in common and none specified; doing nothing.
Which it does when http-push can't get a list of refs recursively from
$URL/refs/.
Signed-off-by: NMike Hommey <mh@glandium.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

t/t5540-http-push.sh

@@ -44,16 +44,17 @@ test_expect_success 'clone remote repository' '
 	git clone $HTTPD_URL/test_repo.git test_repo_clone
 '
 
-test_expect_success 'push to remote repository' '
+test_expect_failure 'push to remote repository' '
 	cd "$ROOT_PATH"/test_repo_clone &&
 	: >path2 &&
 	git add path2 &&
 	test_tick &&
 	git commit -m path2 &&
-	git push
+	git push &&
+	[ -f "$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git/refs/heads/master" ]
 '
 
-test_expect_success 'create and delete remote branch' '
+test_expect_failure 'create and delete remote branch' '
 	cd "$ROOT_PATH"/test_repo_clone &&
 	git checkout -b dev &&
 	: >path3 &&