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### What it does
Checks for usage of `_.chars().last()` or
`_.chars().next_back()` on a `str` to check if it ends with a given char.
### Why is this bad?
Readability, this can be written more concisely as
`_.ends_with(_)`.
### Example
```
name.chars().last() == Some('_') || name.chars().next_back() == Some('-');
```
Use instead:
```
name.ends_with('_') || name.ends_with('-');
```
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