cfmakeraw: missing disable of ICRNL

According to that man page for cfmakeraw, ICRNL should be disabled, but it was not included. This seems to be the cause of problems with reedline and nushell, and some other things. I'm still testing.

There may be some programs that have been modified to work around this problem that might break as a result of this change. I will test as much as I can.