lan print does not handle parameter errors

[AlexanderAmelkin]

Reported by: cdjaneczek
Original Ticket: ipmitool/bugs/483

Currently if there is an error completion code returned for any parameter read as part of lan print the function will return and not attempt to read other parameters. The IPMI implementation may return errors if a given parameter does not have a current value. This issue is to propose changing this to handle the errors and just skip over printing that one parameter while continuing on to attempt to read and print the rest of the parameters.

[AlexanderAmelkin]

patch attached

Original comment by: cdjaneczek