darwin will not perform correctly if there are spaces in the actual
arguments, in which case a single argument will be reported as
multple. Some CGO would be needed to get around this I think.
I couldn't find any good documentation on how windows handles
command line arguments with spaces inside the actual arguments, so
this implementation merely just splits on spaces.
This allows for getting more exact information about each argument
especially if there are arguments that have spaces in them.
This was not implemented for darwin or for windows because they
both currently have not way of properly parsing the cmdline string.
Darwin parses the output of 'ps' which is already whitespace
segmented, and windows just has the cmdline string.
