apache-sanity-check (part of apache-graceful-all)
change the regex to also restart API servers

this should make the apache-graceful-all output clean again,
no more "System failed sanity check" messages.

that is because API servers have VIPs ending in .22 and they
are in dsh groups, so they were NOT restarted. but we want
them to be restarted per email discussion in March

the .21 is actually for rendering servers, but noone actually use it
yet.

1       1H      IN PTR  appservers.svc.eqiad.wmnet.
...
21      1H      IN PTR  rendering.svc.eqiad.wmnet.
22      1H      IN PTR  api.svc.eqiad.wmnet.

Change-Id: I49324bc453c35103359f583472d317e583072c5c