[multipathd] discarding an event is not an error
[multipathd] discarding an event is not an error

This avoids sending misleading "uxtrigger error" messages.

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