When set to "", parameters to array and associative array receivers are
treated as an individual argument. That is, only one argument is appended or
inserted per appearance of the option switch. If arraySep is set to
something else, then each parameter is first split by the separator, and the
individual pieces are treated as arguments to the same option.
Defaults to "" but can be assigned to prior to calling getopt.
When set to "", parameters to array and associative array receivers are treated as an individual argument. That is, only one argument is appended or inserted per appearance of the option switch. If arraySep is set to something else, then each parameter is first split by the separator, and the individual pieces are treated as arguments to the same option.
Defaults to "" but can be assigned to prior to calling getopt.