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Fix clippy warning in procedural macro example 

I copy+pasted this example into my code and the `clippy::to_string_in_format_args` lint fired.
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Yotam Ofek 2024-03-30 23:14:03 +03:00 committed by GitHub
parent 984b36eca4
commit a7a86824fa
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src/procedural-macros.md
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@ -234,8 +234,8 @@ shown in the comments after the function prefixed with "out:".
#[proc_macro_attribute]
pub fn show_streams(attr: TokenStream, item: TokenStream) -> TokenStream {
println!("attr: \"{}\"", attr.to_string());
println!("item: \"{}\"", item.to_string());
println!("attr: \"{attr}\"");
println!("item: \"{item}\"");
item
}
```