bors 7bbcd005b3 Auto merge of #52805 - ljedrz:format_str_literal, r=petrochenkov
Don't format!() string literals

Prefer `to_string()` to `format!()` take 2, this time targetting string literals. In some cases (`&format!("...")` -> `"..."`) also removes allocations. Occurences of `format!("")` are changed to `String::new()`.
2018-07-30 06:29:39 +00:00
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