Don't ignore return value of qemuProcessKill
Don't ignore return value of qemuProcessKill

https://bugzilla.redhat.com/show_bug.cgi?id=903238

When calling qemuProcessKill from the virDomainDestroy impl
in QEMU, do not ignore the return value. This ensures that
if QEMU fails to respond to SIGKILL, the caller will know
about the failure.

Signed-off-by: Daniel P. Berrange <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>
(cherry picked from commit f1b4021b38f9485c50d386af6f682ecfc8025af5)

mithleshvrts/libvirt-0.10.2,mithleshvrts/libvirt-0.10.2,mithleshvrts/libvirt-0.10.2,mithleshvrts/libvirt-0.10.2,mithleshvrts/libvirt-0.10.2