Re: [PATCH v5 0/3] MR8920: cmd: Fix some TYPE command behavior (one more try).

[eric pouech (＠epo)]

I'm not sure it's worth it trying all possible input character as:
- ASCII characters (20-7F) bring nothing
- it could have some unwanted side effects depending on input locale for upper half of the values
- tests should be tests, not tools to list all possible values (it also consumes test time)

so I'd suggest that the second test duplicates the first one, but replacing ctrl-z by EOF=0 (so that we test unitary the behavior of the control characters that should end a file in text mode)