Merge PR #39737 into pacific

* refs/pull/39737/head:
	mgr/DaemonServer: osd ok-to-stop: return json when there are unknown PGs
	doc/man/8/ceph: document --max option
	src/test/osd/safe-to-destroy: adjust test
	ceph: print command output to stdout even on error
	mgr/DaemonServer: include details in 'osd ok-to-stop' output
	mgr: add --max <n> to 'osd ok-to-stop' command
	mgr: relax osd ok-to-stop condition on degraded pgs

Reviewed-by: Neha Ojha <nojha@redhat.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>

diff --cc src/mgr/DaemonServer.cc
Simple merge