hslogger socket can block on sendTo

[pheaver]

We are on Linux. We just discovered that even though the socket is opened in datagram mode, writing to the /dev/log socket can still block if the queue is full, unless the socket is opened in nonblocking mode. This means that our application using hslogger will hang if syslog is broken. Alternatively, logging to localhost UDP 514 would also fix this problem.

[pheaver]

ping