Time: More cleanup

[envp]

• Introduce StringEscapeDecoder which wraps a string iterator that unescapes ASCII control codes in the underlying string
• Make the x_formatter functions return an Option<String> for when they are unable to format the rusage struct.
  • [ ] Still calling unwrap() at the top level. Could probably add my own wrapper enum if that is a huge concern

@GrayJack Do you think we can use StringEscapeDecoder somewhere else in this project?

[GrayJack]

Do you think we can use StringEscapeDecoder somewhere else in this project?

Maybe printf? I'm not sure at the top of my head

About the CI failures, it is a crate that updated patch version using new rust features. I'll push a dirt fix soon, I let you know so you can rebase your branch

[GrayJack]

@envp Can you rebase your branch from current dev branch?

[envp]

Do you think we can use StringEscapeDecoder somewhere else in this project?

Maybe printf? I'm not sure at the top of my head

Looked at printf looks like it also does some string unescaping. Also there's a possible bug, \v is mapped to \x0D (which is \r) but its supposed to be \x0B reference

Will rebase, and refactor it into coreutils core.

[bors[bot]]

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