Wrong single_char_pattern suggestion for hex escaped char

[dtolnay]

fn main() {
    let msg = "";
    println!("{}", msg.starts_with("\x03"));
}

warning: single-character string constant used as pattern
 --> src/main.rs:3:36
  |
3 |     println!("{}", msg.starts_with("\x03"));
  |                    ----------------^^^^^^- help: try using a char instead: `msg.starts_with("\x03")`
  |

I would expect the lint to recommend msg.starts_with('\x03') and not msg.starts_with("\x03") which is the original code.

[flip1995]

Hmm, I submitted a PR not long ago addressing another issue with this lint. Maybe I broke something with it. I'll look into this!