Use `/usr/bin/env` to find `stty`

[michaelpj]

Some distros don't necessarily have stty at /bin/stty, but /usr/bin/env is slightly more standardized.

(I'd offer a patch but I'm currently a total Rust illiterate .)

[rschmitt]

Which distros, and where is it located if not /bin/stty? The /bin/stty path has been hard-coded due to #41.

[michaelpj]

NixOS in particular. It's on the PATH, but not in /bin. I realise this is slightly weird, but that's portability for you...

[michaelpj]

Oh I see, you specifically don't want to take it from the user's PATH. I can't really say anything to that except that I think that's quite fragile. If you need certain things to be installed and on the path then that's fine, and users need to get that right. Assuming you can get it from somewhere else seems risky (and does not work for me).

[rschmitt]

I may prefer /usr/bin/env to hardcoding /bin/stty now that I know that the latter isn't necessarily portable. I may also try both strategies.

[michaelpj]

To be clear, /usr/bin/env will do a PATH lookup, so the user in #41 would have the same problem due to having the wrong stty on their PATH.