Merge PR #32777 into master

Merge PR #32777 into master

* refs/pull/32777/head:
	common,log,msg: Fix win32 compiler warnings
	win32,common: provide a default ceph.conf location
	common: add newline before parsing config on Windows
	common: verify unix sockets support on Windows
	common: fix md_config_t::get_cluster_name
	global, common: Print config parse errors
	common: accept config files containing whitespaces
	librbd: avoid broken mingw rng
	common: define DEV_NULL
	tools,common,msg: Use O_BINARY for win32 compatibility
	log: fix timestamps on Windows
	common,librbd: add portable ceph_memzero_s
	common,msg: Fix socket handling
	common: Extend win32 compatbility layer

Reviewed-by: Jason Dillaman <dillaman@redhat.com>