[ESS] exceptions for indentation

[Lionel Henry]

> On 25 sept. 2015, at 16:38, Andreas Leha <andreas.leha using med.uni-goettingen.de> wrote:
> 
> How can I define exceptions to the indentation?


Hello,

We could provide a hook to make it easier. Until then,
you can advise (ess-calculate-indent) to check if the
line starts with << and ends with >>, return 0 if that's
the case, or proceed with the original function otherwise.

Could you open a Github issue so we consider adding
the hook?

Thanks,
Lionel