fix(controller): watch fifth column for state

fleetctl v0.3.4 introduced a fifth column, so we need to update
the location of the state column.

Author: Matthew Fisher

controller/scheduler/coreos.py

@@ -112,7 +112,7 @@ def _wait_for_announcer(self, name, env):
         status = None
         for _ in range(60):
             status = subprocess.check_output(
-                "fleetctl.sh list-units | grep {name}-announce.service | awk '{{print $4}}'".format(**locals()),
+                "fleetctl.sh list-units | grep {name}-announce.service | awk '{{print $5}}'".format(**locals()),
                 shell=True, env=env).strip('\n')
             if status == 'running':
                 break