Terminal echo is not restored when CLI arguments are -help or "wrong". #22
Description
I noticed with the new release that when running "iz-cpm -help" the terminal gets messed up.
$ ./iz-cpm-linux-v1.3.3/iz-cpm -help
iz-cpm https://github.com/ivanizag/iz-cpm
CP/M 2.2 Emulation
Press ctrl-c ctrl-c Y to return to host
USAGE:
iz-cpm [FLAGS] [OPTIONS] [ARGS]
...
ARGS:
<CMD> The binary image to run, usually a .COM file
<ARGS> Parameters for the given command
$
The issue specifically is that terminal echo has been disabled, I have to type "reset" to restore the terminal to the expected state.
Running iz-cpm, with a binary, or with the CCP, is fine. It's only when we terminate early due to either a malformed argument or a -help flag.
For example the following also disables terminal echo
$ ./iz-cpm-linux-v1.3.3/iz-cpm --ccp
error: The argument '--ccp <ccp>' requires a value but none was supplied
USAGE:
iz-cpm --ccp <ccp> --cpu <model> --disk-a <path> --terminal <terminal>
For more information try --help
frodo ~/iz-cpm $