Without option, it sends a carriage return to the session.
Useful for aliases that needs carriage returns.
With the option as 0-3, it sets the terminating string of each line
sent to MUD. Default of yTin is now 0("\n"). (Save 1 byte of net traffic?)
Available options are: 0("\n") 1("\r") 2("\r\n") 3("\n\r") .
Another usage is: #cr ?
This shows what is current settings now.
NOTE: If you want to edit some file in some versions of MudOS (suppose you are a wizard),
make sure to use #cr 2 change to TinTin++'s default.