🐛 Fix: format error [E0277]

KeyCode and KeyModifiers didn't implement std::fmt::Display, this will produce errors when compiling.

Compiler outputs as following.

error[E0277]: `KeyModifiers` doesn't implement `std::fmt::Display`
  --> src/main.rs:38:35
   |
38 |                     print!("{}+", event.modifiers);
   |                                   ^^^^^^^^^^^^^^^ `KeyModifiers` cannot be formatted with the default formatter
   |
   = help: the trait `std::fmt::Display` is not implemented for `KeyModifiers`
   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
   = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `print` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: `KeyCode` doesn't implement `std::fmt::Display`
  --> src/main.rs:40:34
   |
40 |                 println!("{}\r", event.code);
   |                                  ^^^^^^^^^^ `KeyCode` cannot be formatted with the default formatter
   |
   = help: the trait `std::fmt::Display` is not implemented for `KeyCode`
   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0277`.

crossterm-rs / crossterm

🐛 Fix: format error [E0277] #901