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### 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];
```
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