Merge PR #29493 into master

Merge PR #29493 into master

* refs/pull/29493/head:
	qa/tasks/mgr/mgr_test_case: get mgrmap from 'mgr dump', not status
	qa/tasks/ceph_manager: no newlines in 'ceph -s' output
	mon: make mon summary more concise in 'ceph -s'
	mon/MgrStatMonitor: set initial service_map 'modified' to cluster mkfs
	mon: remove double-nesting of "osdmap" for ceph status
	mon/MgrMap: make print_summary (used by 'ceph -s') more concise

Reviewed-by: Neha Ojha <nojha@redhat.com>
Reviewed-by: Kefu Chai <kchai@redhat.com>