CA-21237: also report the windows error code if VM.snapshot_with_quiesce fails.
CA-21237: also report the windows error code if VM.snapshot_with_quiesce fails.

Signed-off-by: Thomas Gazagnaire <d17b540e4bd20a6d2c62b93674760725b3f75517@citrix.com>

johnelse/xcp-rrdd,johnelse/xcp-rrdd,sharady/xcp-networkd,robhoes/squeezed,djs55/xcp-networkd,koushikcgit/xcp-rrdd,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,djs55/xcp-rrdd,djs55/xcp-rrdd,djs55/xcp-networkd,simonjbeaumont/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,djs55/squeezed,koushikcgit/xcp-networkd