Kuniwak / vint / 998 / 3

96%

master: 96%

Pull #344

travis-ci

Fix None access exception

When empty entry in config like this:

```
policies:
```

vint always raises an exception.

```
AttributeError: 'NoneType' object has no attribute 'keys'
```

792 of 915 branches covered (86.56%)

3980 of 4154 relevant lines covered (95.81%)

0.96 hits per line