Update chapter_3_13.md

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令狐一冲
2023-05-31 14:16:27 +08:00
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@@ -246,7 +246,6 @@ fn main() {
```rust
struct Closure<'a> {
x: i32,
y: i32,
}
impl<'a> FnOnce<(i32,)> for Closure<'a> {