Shows how to use a go directory for passing an NULL terminated argv type
array.
This also exercises the bug in the previous commit. That's why the
call1 function isn't assigned to zero, that the only case where that bug
happens.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
After the documentation update on how to utilize the director feature with
commit @17b1c1c the 'callback' and 'extend' examples needed an update as well.
The 'callback' and 'extend' examples were presumed to be obsoleted by the new
'director' example. The examples are helpful though to have similar examples
across target languages and hence the commit @5e88857 which removed these
examples got reverted.
