sysutils/py-salt: Teach the Salt master and minion startup scripts to set
pidfile=.

On a restart this will cause the rc framework to wait for the processes to
exit before trying to start, instead of failing to start because the previous
processes have not gone away yet.

PR: 217154
Approved by: Christer Edwards <christer.edwards@gmail.com> (maintainer),

		bdrewery (mentor, implicit)