This application just show the power of args-parser.

USAGE: sample.help.exe -s, --host <arg> -p, --port <arg> [ -h, --help <arg> ]
       [ --timeout <ms> ]

REQUIRED:
 -s, --host <arg>   Host. Can be "localhost", "any" or regular IP.

 -p, --port <arg>   Port number to create socket.

OPTIONAL:
 -h, --help <arg>   Print this help.

     --timeout <ms> Timeout before new messages will be sent in milliseconds.
