Pbcopy prints somehting in terminal

Hi, I've read the code… and I don't like a solution used as it's the same for other OS'es as well. I'd like it to be as clean as possible.

Could you please put this specific line under `#[cfg(all(unix, not(any(target_os="macos", target_os="android", target_os="emscripten"))))]` as it's done in a library you use?

Locate the pbcopy implementation and identify the specific line that should be guarded. Apply the requested Unix target condition, then verify that pbcopy no longer prints unwanted output in the terminal on the affected platforms.

Written by the indexing model from the issue text.