Make kill command more UNIX like

[willir]

Add support for the following syntax:

1. -SIG_NUM
2. -SIG_NAME
3. -s SIG_NAME
4. -l
5. -l SIG_NUM ...
6. -l SIG_NAME ...

[jackpot51]

Making a note that before merge, I want to finish signals support in Redox. Also, this will need to build on Redox, and I do not believe the nix crate will compile for Redox.

[willir]

@jackpot51, well nix is for all Unix except redox

I mean there is a condition for nix dependency in Cargo.toml:

[target.'cfg(all(unix, not(target_os = "redox")))'.dependencies]
nix = ">=0.8"

Maybe there is a better way to specify such dependency though.

[hardBSDk]

Redox moved to GitLab years ago, thus if you still want to merge it, move this pull request to there.

If you still want to contribute to Redox, talk with us in the Matrix chat.