all: `clap` output is colorless

[cakebaker]

I guess with the switch to a localized clap, the output from clap has become colorless. See the difference between the four screenshots: the first two are from uutils head, the others are from sed (which is not part of coreutils). While it's a regression to the previous behavior, I'm not sure whether we want to handle it as a bug or a feature.

[sylvestre]

interesting, i see that
cargo run --features unix whoami --verbos

[cakebaker]

Hm, maybe it depends on the shell? I'm using bash.