Fix puppet initd script

[Fabrizio Soppelsa]

MOS 9.2:

In the puppet initd file, for stop() there is:

```
PIDFILE="/run/puppet/${NAME}.pid"
...
stop_puppet_agent() {
        start-stop-daemon --stop --retry TERM/10/KILL/5 --quiet --oknodo --pidfile $PIDFILE
}
```

After stopping the puppet agent, this pidfile is not removed. Thus, it still includes a pid which is not updated ever, ie:

$ cat /run/puppet/agent.pid
1234

When puppet stop is invoked, the script will kill the process with pid 1234, whatever it is.

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: 9.0
Change author: Max Yatsenko <email address hidden>
Review: https://review.fuel-infra.org/36051

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/36051
Submitter: Pkgs Jenkins <email address hidden>
Branch: 9.0

Commit: 4e2b00de2818b8f5627b7aec6c8a2a7ac54de6d7
Author: Max Yatsenko <email address hidden>
Date: Tue Jul 25 11:45:58 2017

Update puppet agent init script

It updates puppet init script to
remove a PIDFILE after puppet service
stopping.

Change-Id: Icb27964ee395fab2f393007ed192251416f8f56d
Closes-bug: #1699799

[Vladimir Jigulin (vjigulin)]

Verified on 9.0-2017-09-01 snapshot

Deploy without proposed:
root@node-1:~# cat /run/puppet/agent.pid
9304

Deploy with proposed:
root@node-1:~# cat /run/puppet/agent.pid
cat: /run/puppet/agent.pid: No such file or directory
root@node-1:~# ls /run/puppet/
root@node-1:~#