Sockets: print more useful error text for socket errors
Sockets: print more useful error text for socket errors

As tboegi suggested we should use strerror to have a more readable
socket error.

Signed-off-by: Patrick Bruenn <27dd71a6a4a167461f53ec06010a2a08d399a527@beckhoff.com>

Beckhoff/ADS,Beckhoff/ADS,Beckhoff/ADS,Beckhoff/ADS