Removing the -p from the "nc" command. (#697)

Removing the -p from the "nc" command. (#697)

Removing the -p from the "nc" command.
Reason:
# nc -w 4 -l -p 80
nc: cannot use -p and -l

Without -p it works just fine.

> -l' Used to specify that nc should listen for an incoming connection rather than initiate a connection to a remote host. It is an error to use this option in conjunction with the -p, -s, or -z options. Additionally, any timeouts specified with the -w option are ignored.