MFC r202668+r200806:

MFC r202668+r200806:

Don't consider non-existence of a PID file an error, we should be able
to proceed anyway as this most likely mean that the process has been
terminated. [1]

Add a new option, -P, which reverts newsyslog(8) to the old behavior,
which stops to proceed further, as it is possible that processes which
fails to create PID file get screwed by rotation. [2]

PR:		bin/140397
Submitted by:	Dan Lukes [1]
Requested by:	stas [2]

git-svn-id: svn://svn.freebsd.org/base/stable/8@203436 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f