nc: change optind = 0 to optind = 1
nc: change optind = 0 to optind = 1

Even though man getopt(3) states that "in order to reset getopt(3) to
restart scanning of argv, optind must be set to 1", doing so fails to
evaluate multiple sets of arguments for some reason.

Setting this variable to 0 fixes this quirk.

https://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00230.html
http://stackoverflow.com/a/535807/6740471

Signed-off-by: Cihangir Akturk <11f395824a946e8925f106c1f042cb83fade0e47@gmail.com>

cakturk/unet,cakturk/unet,cakturk/unet