write_with_newline should not warn when "\n" is preceded by "\r"

[Geobert]

Writing to a file, I need CRLF format so I have no other choice than using write with \r\n.

warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
  --> src\main.rs:49:13
   |
49 |             write!(out, "{}\r\n", line)?;
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: #[warn(clippy::write_with_newline)] on by default
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline

[V1shvesh]

Hey @Geobert @matthiaskrgr! Is this issue still relevant?

[flip1995]

Yes it is. matthiaskrgr/rust-clippy@588dcc8 didn't fix this back then, and I think @matthiaskrgr probably forgot about this in the mean time. So feel free to take this 👍

[V1shvesh]

Awesome!

[bookshelfdave]

hi @V1shvesh are you working on this issue? If not, I have a fix.

[V1shvesh]

@metadave I haven't worked on it yet, so feel free! Thanks!

[matthiaskrgr]

PR has been integrated, I'm closing this. :)

[flip1995]

No, it's S-inactive-closed, not merged. Only thing left to do is to add a test and the PR is finished.