Cop idea: disallow successive not_to include

[boris-petrov]

This code:

expect(some_string).not_to include('aaa')
expect(some_string).not_to include('bbb')

Could be written as:

expect(some_string).not_to include('aaa', 'bbb')

[Darhazer]

Same goes for:

expect(some_string).to include('aaa')
expect(some_string).to include('bbb')

Or

expect(some_string).to include('aaa').and include('bbb')