Merge PR #35522 into master

* refs/pull/35522/head:
	vstart_runner: set default values of stdout and stderr to None

Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

diff --cc qa/tasks/ceph_manager.py
Simple merge

diff --cc qa/tasks/vstart_runner.py
Simple merge