If para_audiod can not parse a status item received from para_server,
it currently prints
task_notify: notifying task client: audiod switched off
btr_remove_node: removing btr node client from buffer tree
unregister_task: unregistering client (audiod switched off)
This is misleading at best. The error message for status timeouts has
the same problem. This patch makes para_audiod print meaningful error
messages in both cases.