Impossible to provide the robot'is in the Calibration program

[Terae]

Describe the bug
When launching the Calibration program by giving it one of the arguments --id-robot, --id-navigation or --id-navigation-parameters, the program crashes with the error message:

terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_M_construct null not valid

The problem comes from the utilization of the external char *optarg variable.