Add jack2 as test

alsa-project/alsa-utils pull request #74 was opened from bengan:

Jack2 been around for a long time. It should be included in the test.

Request URL : https://github.com/alsa-project/alsa-utils/pull/74 Patch URL : https://github.com/alsa-project/alsa-utils/pull/74.patch Repository URL: https://github.com/alsa-project/alsa-utils