### What it does
Checks slow zero-filled vector initialization

### Why is this bad?
These structures are non-idiomatic and less efficient than simply using
`vec![0; len]`.

### Example
```
let mut vec1 = Vec::with_capacity(len);
vec1.resize(len, 0);

let mut vec1 = Vec::with_capacity(len);
vec1.resize(vec1.capacity(), 0);

let mut vec2 = Vec::with_capacity(len);
vec2.extend(repeat(0).take(len));
```

Use instead:
```
let mut vec1 = vec![0; len];
let mut vec2 = vec![0; len];
```