If by "they" you mean Basho, then you are correct, but I've been told that won't be until the next release and then the formula will be updated accordingly. 

On Jul 13, 2013, at 12:04 PM, Adam Vandenberg <notifications@github.com> wrote:

> In Library/Formula/riak.rb:
> 
> >  
> > -  option '32-bit'
> > +  # patch scripts to work with homebrew symlinking
> > +  def patches
> > +    [
> > +      "https://gist.github.com/erbmicha/5970803/raw", # env.sh patch
> When they accept it upstream then we won't need a patch, but in the meantime, the approach used in the other riak 1.4.0 submission has a smaller footprint.
> 
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