Opening serial port fails if serial port is created with socat

[rm5248]

Socat can be used to create a serial port(pty) on Linux. When this is the case, we will fail to open up the serial port properly, as getSerialLineStateInternalNonblocking throws an error, presumably because TIOCMGET is not implemented on these ports.

See also: https://stackoverflow.com/questions/14830739/where-is-tiocmget-supposed-to-be-implemented

[rm5248]

Fixed, will be in 0.10