multipathd crash on shutdown
multipathd crash on shutdown

On shutdown multipathd flushes its internal message queue;
but we have to check if the messages on the queue are not empty.

Signed-off-by: Hannes Reinecke <b0d1e9e4a4e27620745ff49be9000da3174a4cc6@suse.de>

vijaychauhan/multipath-tools,unakatsuo/multipath-tools,grzn/multipath-tools-explained,unakatsuo/multipath-tools,gebi/multipath-tools,unakatsuo/multipath-tools,grzn/multipath-tools-explained,vijaychauhan/multipath-tools