As of git rev 511e1f69cc91 in templates (see "MT#58452 monit: Use a Unix socket for the httpd control access"),
monit no longer listens on port 2812 but uses a Unix socket instead.
Fixes:
| not ok 848 - Port: tcp:2812: listening: doesn't match, expect: [true] found: [false]
Change-Id: I9b16aac2ebbf14defdd2713f72c7362ab21d43b8