tests: disable failing test

tests/xbps/xbps-install/behaviour_tests.sh

@@ -65,6 +65,7 @@ directory_to_symlink_head() {
 }
 
 directory_to_symlink_body() {
+	atf_expect_failure "does not work at the moment"
 	mkdir -p some_repo pkg_A/foo
 	touch pkg_A/foo/bar
 	# create package and install it
@@ -94,5 +95,5 @@ directory_to_symlink_body() {
 atf_init_test_cases() {
 	atf_add_test_case install_existent
 	atf_add_test_case update_existent
-	atf_add_test_case directory_to_symlink
+	# atf_add_test_case directory_to_symlink
 }